Patent
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Patent:11009493
17.01.2011 J. A. Ettler : Combined Record Book and Slide Rule
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Patent:11017719
17.01.2011 H. R. Watts : Circular Slide Rule
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17.01.2011 G. W. Richardson : Slide Rule
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17.01.2011 A. N. Lurie : Slide Rule
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17.01.2011 R. M. Hamby : Slide Rule
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17.01.2011 D. W. Erunton : Circular Slide Rule
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17.01.2011 Hemmi, Jiro (P) : Improvements in the Slide Rules
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17.01.2011 W. O. Philips : Slide Rule
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17.01.2011 H. W. Tomlinson : Slide Rule
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17.01.2011 C. F. Dieckmann : Slide Rule
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17.01.2011 Clair. A. Gilson Gilson Slide Rule Co (P) : Slide Rule
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17.01.2011 G. R. F. H. Cuntz : Slide Rule Calculator
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17.01.2011 F. O. Stillman & H. M. Schleicher : Slide Rule
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17.01.2011 Hemmi, Jiro (P) : Slide Rule
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17.01.2011 C. J. Davidson : Slide Rule
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17.01.2011 F. O. Stillman and H. M. Schleicher : Slide Rule
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17.01.2011 H. ONeill and S. H. Payne : Slide Rule
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17.01.2011 H. Ritow : SlideRule
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17.01.2011 Min-Kao Tang : Slide Rule
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17.01.2011 Miller, William L. Gisholt Machine Comp. : Slide Rule
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17.01.2011 J. F. Keller et al : Circular Slide Rule
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17.01.2011 O. D. Parson : Slide Rule
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17.01.2011 C. N. Reynolds, Jr. : Slide Rule
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17.01.2011 W. B. Eaton et al : Slide Rule
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17.01.2011 P. Jaray : Slide Rule with Logarithmical Graduations
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17.01.2011 Keuffel, Adolf W. (P) : Log Log Duplex Slide Rule
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17.01.2011 M. H. Reymond : Leather Estimating Slide Rule
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17.01.2011 C. S. Larkey : Slide Rule
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17.01.2011 F. Wömpner : Slide Rule
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17.01.2011 K. Becker : Slide Rule
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17.01.2011 R. Schwanda : Slide Rule
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17.01.2011 J. E. Eshbaugh : Slide Rule
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17.01.2011 H. Ritow : Slide Rule
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17.01.2011 P. Lötzbeyer : Calculating Device in the Form of a Slide Rule
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17.01.2011 L. C. Bulmer et al : Slide Rule
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17.01.2011 H. Ritow : Slide Rule
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17.01.2011 J. Asper : Slide Rule
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17.01.2011 O. G. Herm : Engineers Instrument
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17.01.2011 J. R. Dempster Rotarule : Circular Slide Rule
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17.01.2011 J. R. Dempster : Disk Slide Rule
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17.01.2011 M. O. Schur : Computation Rule
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17.01.2011 Keuffel, Adolf W. (P) : Slide Rule
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17.01.2011 Seehase, Hans (P) : Flexible Slide Rule
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17.01.2011 A. Langsner : Slide Rule
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17.01.2011 J. Siksta, B.J. Wallace : Footware Area Calculator
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17.01.2011 Keuffel, Adolf W. (P) : Slide Rule
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17.01.2011 Keuffel, Adolf W. (P) : Slide Rule
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17.01.2011 F. Wompner : Slide Rule
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17.01.2011 B. G. Dwyre : Slide Rule
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17.01.2011 A. Langsner : Slide Rule
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17.01.2011 J. A. Boll : Slide Rule
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17.01.2011 C. Norris : Slide Rule
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17.01.2011 Keuffel, Adolf W. (P) : Slide Rule Case
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17.01.2011 W. C. Powell : Device for Facilitating the Reading of a Slide Rule
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17.01.2011 G. D. Shaeffer : Slide Rule
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17.01.2011 Komorous : Rule
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17.01.2011 H. Okura : Hyperbolic Scale Rule
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17.01.2011 F. E. Proal : Slide Rule for Use in Gear Calculatings
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17.01.2011 R. D. Groch : Slide Rule
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17.01.2011 J. G. Valenzuela : Slide Rule
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17.01.2011 Keuffel, Adolf W. (P) : Slide Rule Indicator
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17.01.2011 N. Sinitzin-White : Slide Rule
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17.01.2011 Keuffel, Adolf W. (P) : Slide Rule
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17.01.2011 Kübler, Carl Addiator (P) : Means for Mounting an Adding and Subtracting Device on Slide Rules
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17.01.2011 C. M. Bernegau : Slide Rule
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17.01.2011 L. M. Kells et al : Slide Rule
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17.01.2011 P. M. Van Doormaal : Penetration Index Slide Rule
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17.01.2011 H. Gilmore : Endless Slide Rule
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17.01.2011 C. P. Berg : Slide Rule
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17.01.2011 B. Ferrughelli : Proportional Slide Rule
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17.01.2011 J. C. Holdman : Valve Setting Calculator
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17.01.2011 H. C. Goodrich : Slide Rule
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17.01.2011 E. Hirano : Slide Rule
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17.01.2011 Kübler, Hans-Wolfgang : Calculating Instrument
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17.01.2011 E. A. Ravenscroft : Reset Slide Rule
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17.01.2011 F. W. Johnson et al : Slide Rule
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17.01.2011 L. M. Kells et al : Slide Rule
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17.01.2011 R. Montgomery : Slide Rule for the Sightless
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17.01.2011 F. W. Lang : Slide Rule for Wall Patterns and Areas
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17.01.2011 M. A. Roggencamp : Slide Rule
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17.01.2011 B. Sassen : Rotary Slide Rule
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17.01.2011 B. Sassen : Rotary Slide Rule
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17.01.2011 H. A. Freedlander : Copy Slide Rule
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17.01.2011 J. E. Dietzgen Dietzgen (P) : Slide Rule
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17.01.2011 T. J. Setera : Slide Rule
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17.01.2011 H. W. Moyer : Four Place Slide Rule
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17.01.2011 Snedaker, A. L. (P) : Slide Rule
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17.01.2011 Kreiling, A. H. (P) : Slide Rule Indicator
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17.01.2011 Goudime-Levkovitsch, Paul (P) Simmonds Aerocessories Ltd. : Computer of the Slide Rule Type
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17.01.2011 Seidman, E. (P) : Vernier for Slide Rules
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17.01.2011 MacDonald, G. M. (P) : Slide Rule Calculator
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17.01.2011 Wood, K. R. (P) : Statistical Slide Rule
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17.01.2011 Durand, F. (P) : Graphic Calculator
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17.01.2011 Wittgenstein, G. F. (P) : Disc Slide Rule
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17.01.2011 Mitchell, R. M. (P) : Cryptographic Slide Rule
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17.01.2011 Ailinger, J. F. (P) : Slide Rule
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17.01.2011 Roberts, I. S. (P) : Slide Rule
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17.01.2011 Goldfien, I. (P) : Sewer Design Slide Rule
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17.01.2011 Wiberg, O. A. (P) : Slide Rule
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17.01.2011 Eckel, A. F. (P) : Slide Rule
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17.01.2011 Adiletta, J. G. (P) : Slide Rule Accessory
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17.01.2011 Goldstaub, H. H. (P) : Slide Rule
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17.01.2011 Eckel, A. F. (P) : Motion Controlling Means for Slide Rules
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17.01.2011 Koenig, F. L. (P) : Slide Rule
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17.01.2011 Liebermann, H. S. (P) : Slide Rule
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17.01.2011 Smidl, J. J. (P) : Slide Rule Attachment
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17.01.2011 Eckel, A. F. (P) : Interchangeable Scale for Slide Rules
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17.01.2011 Hertig, M. (P) : Bowling Slide Rule
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17.01.2011 Young, L. (P) : Quartertone Slide Rule for Musicians
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17.01.2011 Sbernadori, P. (P) : Slide Rule
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17.01.2011 Kahan, B. D. (P) : Slide Rule
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17.01.2011 Fujisaki, Y. (P) : Slide Rule
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17.01.2011 Posson, C. A. (P) : Cylindrical Slide Rule
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17.01.2011 Dewar, N. F. (P) : Slide Rule
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17.01.2011 Hachmuth, K. H. (P) : Circular Slide Rule
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17.01.2011 Babcock, F. A. (P) : Printers Calculator and Circular Slide Rule
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17.01.2011 Bock, R. G. (P) : Slide Rule for Indicating Productivity of Operator or Machine and/or the Quality Level of a Process
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17.01.2011 Solomon, C. (P) : Slide Rule
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17.01.2011 Cole, D. L. (P) : Slide Rule
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17.01.2011 Steinkoenig, C. A. (P) : Dividend Figuring Slide Rule
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17.01.2011 Nielsen, J. N. (P) : Slide Rule
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17.01.2011 Schauer, Joachim (P) : Improvements in or relating to logarithmic calculating apparatus combined with writing implements
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17.01.2011 Boos, W. J. (P) : Slide Rule
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17.01.2011 Russel, E. S. (P) : Disk Slide Rule
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17.01.2011 Quillinan, M. J. (P) : Slide Rule
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17.01.2011 Quillinan, M. J. (P) : Slide Rule
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17.01.2011 Davey, C. P. (P) : Slide Rule Indicator
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17.01.2011 Sawyer, H. A., Jr. (P) : Circular Slide Rule
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17.01.2011 Quillinan, M. J. (P) : Slide Rule
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17.01.2011 Quillinan, M. J. (P) : Slide Rule
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17.01.2011 Quillinan, M. J. (P) : Slide Rule
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17.01.2011 Stibitz, G. R. (P) : Slide Rule
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17.01.2011 Toien, P. J. (P) : Slide Rule
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17.01.2011 Nicolet, N. E. (P) : Improvement in or Relating to Slide Rule
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17.01.2011 Boos, W. J. (P) : Slide Rule
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17.01.2011 Hisley, A. (P) : Slide Rule
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17.01.2011 Zak, J. T. (P) : Rectilinear Slide Rules
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17.01.2011 H. F. Taylor : Slide Rule
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17.01.2011 J. T. Zak : Rectilinear Slide Rules
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17.01.2011 H. Tegtmeyer et al Faber Castell (P) : Slide Rules
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17.01.2011 N. E. Nicolet et al : Slide Rule Pencil
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17.01.2011 H. Bachmann : Slide Rules
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17.01.2011 C. C. Van Arsdale, Jr., et al : Slide Rule
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17.01.2011 J. Mondry : Slide Rule
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17.01.2011 J. C. Gabriel : Music Slide Rule
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17.01.2011 J. D. Blakeley et al : Slide Rules
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17.01.2011 P. D. Grimmer : Slide Rule Demonstrator for Overhead Projector
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17.01.2011 T. C. Coale et al : Projectable Slide Rule
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17.01.2011 F. Durand : Slide Rule
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17.01.2011 R. C. Pickett : Metal Slide Rule
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17.01.2011 T. P. Faulconer : Combination Caliper and Slide Rule
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17.01.2011 L. J. Kamm : Automatic Decimal Point Slide Rule
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17.01.2011 C. P. Davey : Slide Rule
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17.01.2011 Bülow, Willy Faber Castell (P) : Slide Rule and Adding Device Combination
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17.01.2011 C. H. Wickenberg : Slide Rule
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17.01.2011 A. D. Frankenfield : Two-Dimension Slide Rule
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17.01.2011 F. L. Woolley : Slide Rule Trainer
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17.01.2011 D. W. White : Slide Rule
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17.01.2011 F. L. Woolley : Slide Rule Trainer
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17.01.2011 C. H. Blackerby : Slide Rule
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17.01.2011 F. W. Bailey : One-Hand Operated Slide Rule
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17.01.2011 I. V. Ezopov : Slide Rule of the Circular Type
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17.01.2011 D. L. Geiger : Slide Rule
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17.01.2011 T. W. Kennedy : Circular Slide Rule
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17.01.2011 R. L. Squier et al. : Axonometric Computer Slide Rule
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17.01.2011 J. Gaudier-Pons : Paint Calculating Slide Rule
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17.01.2011 Prusmack, Murray (P) : Calculating Device
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17.01.2011 Jean-Marie Lavie : Slide Rule for Performing Calculation Involving Screens to Protect Personnel Against Radiations
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17.01.2011 C. O. Harris : Triangular Slide Rule
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17.01.2011 T. M. Osler : Slide Rule
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17.01.2011 P. M. Pepper : Slide Rule
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17.01.2011 G. D. Norman : Circular Slide Rule
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17.01.2011 I.Ezopov : Slide Rule Circular Type with Enlarged Scales
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17.01.2011 S. J. Nayman : Double Length Slide Rule
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17.01.2011 B. Rankin : Slide Rule
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17.01.2011 D. Barron : Sonar Slide Rule
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17.01.2011 C. A. Ritchie : Fish Weight Computer
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17.01.2011 L. A. Warner : Slide Rule
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17.01.2011 I. Ezopov : Slide Rule Of Circular Type. Set for Equations
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17.01.2011 E. J. Chicurel : Proportional Scale Slide Rule
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17.01.2011 P. S. White : Slide Rule Calculator for Missile Capsule
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17.01.2011 C. R. Wern et al. : Slide Rule
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17.01.2011 Paul H. C. Yin : Slide Rule
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17.01.2011 Hunt, George R. (P) : Powered Slide Rule Assembly
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17.01.2011 S. Goldstein : Slide Rule
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17.01.2011 H. Cimetta : Slide Rule
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17.01.2011 E. D. Dunn : Precision Slide Rule Computing Mechanism
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17.01.2011 W.Volk : Slide Rule
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17.01.2011 Daniel Barron : Circular Sonar Slide Rule
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17.01.2011 J. B. R. Lefebre : Circular Slide Rule
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17.01.2011 Paul M. Pepper : Slide Rule
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17.01.2011 Joseph E. Hannon : Slide Rule for Making Patterns
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17.01.2011 Delbert F. Gibby : Slide Rule for Computing Musical Relationships
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17.01.2011 Walter S. Drummond : Improved Slide Rule Arrangement
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17.01.2011 V. M. Leonard : Slide Rule Chord Selector
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17.01.2011 Johann Dogigli : Slide Rules Incorporating Magnetic Elements
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17.01.2011 Herbert Hanft : Slide Ruler to Adjust Length of Typewritten Line
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17.01.2011 Vito Puopolo : Music Slide Rule
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17.01.2011 Charles A. Nessler : Play-By-Chord Slide Rule
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17.01.2011 Wendell Y. Huo : Slide Rule with Operational Guidance and Decimal Point Location Means
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17.01.2011 Victorio T. San Antonio : Netmaking Slide Rule
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17.01.2011 Jacques R. Renault : Chord Slide Rule for Musical Instruments
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17.01.2011 J. R. Martin : Computational Hexadecimal Slide Rule
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17.01.2011 K. B. Comfort : Hexadecimal Slide Rule
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17.01.2011 Francis J. Hopcroft : Multi-Parameter Converting Slide Rule
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17.01.2011 Emil Brugger : Sliderule for Payroll Use
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17.01.2011 Milton J. Bortz : Football Slide Rule
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17.01.2011 Iosif Hondrea : Slide Rule of General Use of Pocket Size
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17.01.2011 William C. Long : Elementary Circular Slide Rule
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17.01.2011 Melvin L. Cohen : Slide Rule Guide to Intrevenous Therapy
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17.01.2011 Iosif Hondrea : Slide Rule with Improved Calculating Capacity
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17.01.2011 Kent H. Bennett : Fractormatic Slide Rule
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17.01.2011 Riehle, Harald (P) : Computing or Calculating Device
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17.01.2011 Wendell Y. Huo : Slide Rule with Decimal Point Location Means
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17.01.2011 Charles H. Schuh : Slide Rule
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17.01.2011 Leonard, Verna M. (8701 Highway 41, Fresno, CA) : Inversion sliderule
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17.01.2011 Thomas, Frank J. (Box 5262 Hicrest Station, Topeka, KS : Rotary slide rule for topographic calculations
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17.01.2011 Betzler, Hermann (Homburg, Saar, DT) : Circular slide rule suitable for use in determining the electrolyte deficiency in infusion therapy
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17.01.2011 Boardman, Hubert (P) A.G. Thornton (P) : Improvements in Slide Rule Calculators
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17.01.2011 Simon, Morris : Circular sliderule improvement
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17.01.2011 Harter, Burleigh W. (823 Canyon Rd., Redwood City, CA : Time/speed/distance slide rule
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17.01.2011 R. C. Smith : Slide Rule for Logarithmic Calculations
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17.01.2011 Riehle, Harald (P) : Slide Rule
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17.01.2011 Boardman, Hubert (P) & Clayton, Albert Edmund (P) & Naylor, Felix Samuel (P) Thornton (P) Ltd : Improvements in Slide Rule calculators, other scale devices, and direction drawing instruments
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17.01.2011 Fukute, Osamu (Inuyama, JP) : Slide rule for selecting material for constructing bearing
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17.01.2011 Ng, Wang C. (6545 Calvine Rd., Sacramento, CA 95823) : Logic design slide rule
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17.01.2011 E. Hill : Slide Rule
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17.01.2011 B. H. Colby : Slide Rule
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17.01.2011 Keuffel, William (P) : Slide Rule
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17.01.2011 J. G. D. Mack : Slide Rule
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17.01.2011 Manyweathers, Leslie (P) Blundell (P) Rules Ltd : Slide Rule
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17.01.2011 Green, George Wilfrid Acland (P) : Slide Rule for spring calculations
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17.01.2011 C. G. Barth, H. L. Gantt & F. W. Taylor : Slide Rule
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17.01.2011 L. W. Rosenthal : Engineers Slide Rule
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17.01.2011 F. J. Anderson : Slide Rule
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17.01.2011 John W. Nystrom : circular slide rule
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17.01.2011 B. D. Coppage : Slide Rule
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17.01.2011 H. T. Hincks : Slide Rule
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17.01.2011 O. L. Baumbach & A. Klitsche : Slide Rule
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17.01.2011 H. Gröndahl : Computing Slide Rule
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17.01.2011 J. L. Hall : Structural Slide Rule
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17.01.2011 Keuffel, William (P) : Slide Rule
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17.01.2011 R. J. Roberts : Flexible Slide Rule
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17.01.2011 G. H. Gibson : Slide Rule
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17.01.2011 G. W. Richardson : Slide Rule
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17.01.2011 E. P. E. Deschamps : Fertility Slide Rule
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17.01.2011 A. A. Sparrowbush : Slide Ruler
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17.01.2011 A. W. Learned III and R. C. Learned : Slide Rule
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17.01.2011 A. W. Learned III and R. C. Learned : Slide Rule
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17.01.2011 J. H. Jefferies : Circular Slide Rule
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17.01.2011 C. A. Raimondi : Slide Rule Calculator
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17.01.2011 Hackemann, William (P) : Metric Converter Slide Rule
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17.01.2011 Hackemann, William (P) : Metric Converter Slide Rule
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23.11.1945 Alexander Bowden Carr : Slide rule for the computation of income tax on earned incomes
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Patent:GB576534
09.04.1946 Burns, Snodgrass (P) : Improvements in or relating to slide rule calculators
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Patent:GB579478
06.08.1946 Ritchie Hart Lock : Improvements in slide rule calculating apparatus
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Patent:GB602802
03.06.1948 Heinz Herbert Goldstaub : Improvements in and relating to slide rules or calculating apparatus of the flat rectilinear type
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Patent:GB621133
05.04.1949 Albert Wilfrid Parkes : A slide rule adapted for english monetary calculations
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Patent:GB621148
05.04.1949 Albert Wilfrid Parkes : A slide-rule adapted for english monetary calculations
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Patent:GB656113
15.08.1951 Howard, George Reading (P) : A slide rule to convert parallax observations on stereoscopic pairs of air photographs to ground elevations
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Patent:GB659754
24.10.1951 Mogiljanskij, Anatolij (P) Loewy Eng Co Ltd : Improvements in and relating to slide rule calculators
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Patent:GB686161
21.01.1953 Isme Ruth Wade Palmer und Carter, Dorothy (P) : Improvements in and relating to calculating devices of the slide rule type
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12.05.1954 Michael John Quillinan : Slide rule
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Patent:GB722148
19.01.1955 Pryer, Walter Thomas (P) Hall Harding Ltd : Improvements in or relating to magnifying devices for slide rule cursors
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Patent:GB737334
21.09.1955 Roland Graf Faber Castell : Improvements in Slide Rules
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25.01.1956 Kenneth Lowson : Improvements in or relating to slide rule cursors
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Patent:GB782873
11.09.1957 Charles John Broadhurst : Improvements in Slide Rules
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Patent:GB811673
08.04.1959 Gilbert Deschatre : Slide rule
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20.02.1963 Guy William Farrier Sangwin : Slide rule
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Patent:GR60096
10.04.1978 Cosmas, P (P) : Slide Rule For Ruling Parallel Straight Lines
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Patent:IL28929
30.10.1970 Davidoff E Scott H Inc : Retractable Slide Rule Apparatus For Indicating Tuning Frequency-Modulated Signal Transmissions
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Patent:IL43239
31.10.1976 Maks Bessen : Multiple Slide Rule For Computation Of Check Digits
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Patent:IT1272224
16.06.1997 Della Rosa Fabio : Mechanical musical Slide Rule with manual selection