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10.02.1970 Valia S. Golemon : Zero entry mechanism
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13.01.1970 Placke, Everett H. (P) et al NCR (P) : Automatic Cycle Control Mech for Business Machines
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03.02.1970 R. B. Stewart : Analytical Instrument
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10.02.1970 Irwin C. Porter : Map scaling device
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10.02.1970 Valia S. Golemon : Zero entry mechanism
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17.02.1970 Lydfors, John (P) Addo (P) : Devices in Adding Machines Having a Multiplying Mechanism for Converting a Total-Taking Operation Into a SubTotal-Taking Operation
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17.02.1970 P. R. Monsler : Adding and Subtracting Device
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24.02.1970 Louis A. Warner : Navigational plotter
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24.02.1970 L. A. Warner : Navigational Computer
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24.02.1970 L. A. Warner : Navigational Computer
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10.03.1970 Busch Addmaster (P) : Control Mechanism for Calc Mach
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10.03.1970 E. K. Mentzer et al. : Automatic Scoring Totalizing and Printing Apparatus for Bowling Game
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17.03.1970 Hill Keith Audis : Ellipsograph
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17.03.1970 B. J. Matejczyk : Device for the Teaching of Numeration Systems to all Bases
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24.03.1970 K. E. Börseth : Apparatus for Displaying Moments Shearing
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31.03.1970 N. Giolitti et al. : Serial Setup Device for a Calculating, Accounting or Similar Machine
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14.04.1970 Coleman, Benny R. : System frequency response analyzer and plotter
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14.04.1970 W. Fischer : Counter
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21.04.1970 F. Carrero Rives : Rule with Interchangeable Slides
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21.04.1970 Arthur E. Vincent : Interest calculator
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28.04.1970 Kogane Harada : Magnetic Soroban
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28.04.1970 Davis, Wilbur M. IBM (P) : Check digit verifier
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12.05.1970 Melendez, Ralph (P) : Hand Calculators
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26.05.1970 Lichtenstein Leo, Frank Blaha : Typewriter Character Adding Attachment
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07.07.1970 Daniel Barron : Range Computer
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04.08.1970 E. F. Kilpatrick et al. : Apparatus and Method for Determining the Corellation Coefficient of Two Graphical Data
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01.09.1970 Ragen Robert A Singer Co : Square Root Calculator Employing A Modified Sum Of The Odd Integers Method
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13.10.1970 Cole Roy, Rogers Alexander Us Navy : Bomb Ballistic Slide Rule
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20.10.1970 Leo Kull : Menstrual cycle indicating device
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03.11.1970 Kacmarcy Charles : Ellipsograph
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10.11.1970 R. E. Pryor : Numerical Sequence Computer
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10.11.1970 Gozewijn van Gelder Gerrit Johannes Elzinga U.S. Philips Corp. : Push-button matrix switching device
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01.12.1970 Louis A. Warner : Mechanical conversion device
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08.12.1970 Charles B. Haentze Burroughs (P) Corp. : Apparatus for correlating two variables whose relationship is affected by a third
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08.12.1970 Ragen Robert A Singer Co : Calculator
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22.12.1970 Gassino, Teresio Olivetti (P) and Co Spa : Ten Key Calculating Machine
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29.12.1970 Burkhardt, Gottfried (P) Diehl (P) : Tens-Control Device For Sprocket Wheel Calculating Machines
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29.12.1970 James S. Luster : Price comparator
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12.10.1970 Barozzi, Gianpiero (P), Horeschi, Giancarlo (P) Citizen (P) Watch Co. : Single Control Device for starting the multiplication and division Operations in calculating Machines
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13.11.1970 Okajima und Yokoyama Ricoh (P) : ADDING MACHINE WITH PRINTING DEVICE
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04.02.1970 Harutaro Oba; Toshihiko Sawazu; Sugio Takeuchl; Masaru Chikata Tokyo Electric (P) Co., Ltd., Tokyo, Japan : ADDING, SUBTRACTING AND TOTALING CALCULATOR
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27.12.1970 Günter Kieffman Anker (P)-Werke AG : Control device for a registering business machine
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28.12.1970 Koshi, Ryoichiro (P), Barozzi, Gianpiero (P), Horeschi, Giancarlo (P) Citizen (P) Watch Co. : Adding Machine
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01.09.1970 Davis, Aupperie Hewlett Packard (P) : Accessory Cabinet
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15.09.1970 Yotsukura Citizen (P) : Electronic Desk Calculator
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15.09.1970 H. Shahan : Combined Clipboard and Adding Machine