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Die große Enzyklopädie des mechanischen Rechnens

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Search results for: EDUCATIONAL


  Country  Date  Score 
 
  • Patent:GB1384087 19.02.1975 Platemakers Educational und Research Institute : Apparatus for calculating halftone screen exposures [48.20%]
  • Patent:GB407274 15.03.1934 Giulio Sbocchelli : Improved device for demonstrating the fundamental arithmetical operations [27.77%]
  • Patent:GB529555 22.11.1940 Louis William Johnstone : Improved ready reckoner device [11.20%]
  • Patent:GB667706 05.03.1952 : educational Device for teaching multiplication and division [24.64%]
  • Patent:GB808372 04.02.1959 Claude Marsan : Slide rule or similar educational appliance [47.14%]
 
  • Patent:US1028212 04.06.1912 J. Hegewald : Educational Appliance [22.20%]
  • Patent:US1129019 16.02.1915 E. Rooney : Educational Appliance [39.83%]
  • Patent:US1138807 11.05.1915 S. J. Spitler : Educational Appliance [16.76%]
  • Patent:US1142651 08.06.1915 T. Winiecki : Educational Appliance [27.78%]
  • Patent:US1158774 02.11.1915 Johnson D. Beard : Educational appliance [51.35%]
  • Patent:US1161685 23.11.1915 Stephen J. James : Educational appliance [51.35%]
  • Patent:US1183570 16.05.1916 John Kneeshaw : Educational appliance [51.35%]
  • Patent:US1188490 27.06.1916 Robertson, William Henry (P) : Toy [11.35%]
  • Patent:US1218931 13.03.1917 H. G. Cuthbert : Apparatus for Teaching Arithmetic [10.82%]
  • Patent:US1233544 17.07.1917 G. O. Bissey : Educational Device [22.63%]
  • Patent:US1286112 26.11.1918 Robertson, William Henry (P) : Calculating Device [11.77%]
  • Patent:US1329896 03.02.1920 Frome, John H. : Educational appliance [51.35%]
  • Patent:US1392578 04.10.1921 P. J. Jones : Educational Apparatus [26.66%]
  • Patent:US1405193 31.01.1922 W. Favreau : Educational and Entertaining Device [24.25%]
  • Patent:US1450395 03.04.1923 N. Y. Troidl : Educational Appliance [24.98%]
  • Patent:US1498121 17.06.1924 H. Rieck : Educational Appliance [35.35%]
  • Patent:US1528049 03.03.1925 E. J. Fletcher : Chair [22.73%]
  • Patent:US1670512 22.05.1928 Andre Koronski, Heacock, Ralph (P) : Machine for calculating moments of inertia [7.87%]
  • Patent:US1694405 11.12.1928 N. Y. Troidl : Educational Appliance [14.61%]
  • Patent:US1720499 09.07.1929 W. Walker : Educational Computing Device [24.72%]
  • Patent:US1866133 05.07.1932 F. L. Simon : Educational Device [22.06%]
  • Patent:US1941733 02.01.1934 Saul Badanes : Counting and calculating card [12.08%]
  • Patent:US2188723 30.01.1940 L. R. Posey : Educational Device [15.68%]
  • Patent:US2228274 14.01.1941 M. W. La Fever : Calculating Device [7.06%]
  • Patent:US2275590 10.03.1942 Reynold B. Johnson IBM (P) : Educational device [51.35%]
  • Patent:US2389394 20.11.1945 A. H. Thomas : Electric Mathematical Educational Appliance [18.40%]
  • Patent:US2411614 26.11.1946 Cohen, C. C. (P) : Toy [21.60%]
  • Patent:US2457332 28.12.1948 Wade, F. A. (P) et al : Educational Apparatus [14.21%]
  • Patent:US2507223 09.05.1950 Rosenfeld, M. (P) : Educational Device [14.96%]
  • Patent:US2535208 26.12.1950 Hoover Richard : Moment of inertia calculating device [6.24%]
  • Patent:US2655737 20.10.1953 Don Dero, S. F. (P) : Abacus [14.18%]
  • Patent:US2685748 10.08.1954 Gilbert, C. T. (P) : Educational Toy [18.78%]
  • Patent:US2708797 24.05.1955 Hamer, E. F. (P) : Counting Frame [24.67%]
  • Patent:US279263 12.06.1883 R. T. Martin : Numeral Frame [15.10%]
  • Patent:US2795862 18.06.1957 Poole Thomas J : Adding and subtracting device [6.97%]
  • Patent:US2808199 01.10.1957 Rappeport Lester W : Toy bank and money adding aid [8.89%]
  • Patent:US2888753 02.06.1959 T. S. Swarts : Arithmetic Instruction Apparatus [7.46%]
  • Patent:US2892266 30.06.1959 Tomkins John A : Calculator keyboard simulator for training purposes [6.00%]
  • Patent:US2894337 14.07.1959 W. G. Rawlings : Slide Rule Type of Educational Device [16.33%]
  • Patent:US2950542 30.08.1960 Alice M. Steelman : Educational aid for teaching arithmetic [50.79%]
  • Patent:US2971268 14.02.1961 H. Zimmerman : Quiz Game Devices [8.00%]
  • Patent:US3006082 31.10.1961 Miles A. Libbey : Educational device for teaching binary computation [47.24%]
  • Patent:US3129628 21.04.1964 R. Hall : Music Teaching Device [11.24%]
  • Patent:US3136076 09.06.1964 A. F. Schott : Educational Tool Adapted to Faciliate Teaching the Arithmetic of Fractions [18.61%]
  • Patent:US3298104 17.01.1967 D. V. Smith : Geometric Design Instrument [6.95%]
  • Patent:US3309017 14.03.1967 M. A. Koskela : Educational Calculating Device [20.75%]
  • Patent:US3402482 24.09.1968 J. S. Rankin : Matematics Teaching Device [14.51%]
  • Patent:US3412470 26.11.1968 R. C. Williams et al. : Educational Device [25.11%]
  • Patent:US3419972 07.01.1969 J. A. Kitzinger : Educational Aid ... [10.08%]
  • Patent:US3526973 08.09.1970 Delves James A H Brees Plastics Ltd : Calculating Instrument [8.31%]
  • Patent:US3540648 17.11.1970 Mcgee Charles G Charles G Mcgee : Slide Calculator For Direct Addition And/Or Subtraction Of Integer Qualities In Two Number Systems [6.54%]
  • Patent:US3672072 27.06.1972 Joseph S. Akiyama : Educational Device [21.62%]
  • Patent:US3678796 25.07.1972 Vito Puopolo : Music Slide Rule [12.26%]
  • Patent:US378866 06.03.1888 E. P. Clark & D. L. Wren : Abacus [26.13%]
  • Patent:US380532 03.04.1888 H. O. R. Siefert : Educational Appliance [16.75%]
  • Patent:US3811205 21.05.1974 Mary Ann Pitzler : Sensorial Counting Board [11.69%]
  • Patent:US4048731 20.09.1977 Baguioro, Anastasia : Educational game apparatus [26.35%]
  • Patent:US4218609 19.08.1980 Chin, Yi (P) (23356 Batey Ave., Harbor City, CA 90710) Chen, Yi (P) : Educational mechanical calculator [23.49%]
  • Patent:US4416633 22.11.1983 Gulack, Max A. : Educational and recreational mathematical device in the form of a band, [12.55%]
  • Patent:US480164 02.08.1892 S. S. Barrett : Educational Appliance [51.91%]
  • Patent:US4812124 14.03.1989 Colodner, Jesse (P) : Hexadecimal abacus [12.14%]
  • Patent:US487695 06.12.1892 J. L. Collins : Educational Appliance [51.91%]
  • Patent:US4882472 21.11.1989 Sigman, Susan J. (West Lafayette, IN), Meade, Paula A. : Fluoride supplement calculator [11.80%]
  • Patent:US4883277 28.11.1989 Laisure, Thomas J. : Educational board game for teaching mathematics and logic [48.30%]
  • Patent:US4884973 05.12.1989 Pak, Kyoungsik : Mathematic teaching aid [11.51%]
  • Patent:US496993 09.05.1893 H. C. Bristol : Educational Appliance [51.91%]
  • Patent:US5039603 13.08.1991 Pocius, Frank (P) : Educational system for teaching counting and equation solving strategies [25.95%]
  • Patent:US5205747 27.04.1993 Tan, Daravuth (1821 Josey La., Apt. G, Carrollton, TX : Bead calculator educational toy [47.49%]
  • Patent:US521360 12.06.1894 Bechmann, Albertina (P) : Educational Appliance [51.35%]
  • Patent:US5299806 05.04.1994 Fifer, Fred (P) University of Texas : Educational device [13.27%]
  • Patent:US5743741 28.04.1998 Fife, Patricia (1331 Traynor Rd., Concord, CA 94520) : Math jigsaw puzzle [28.04%]
  • Patent:US5769639 23.06.1998 Foster, Anne (P.O. Box 7241, Port Aransas, TX 78373) : Multi-educational device [30.70%]
  • Patent:US580516 13.04.1897 B. S. Andrew : Abacus [8.80%]
  • Patent:US5836587 17.11.1998 Druce, Harry Frederick : Playing cards for an educational game [19.72%]
  • Patent:US5954509 21.09.1999 Torres, Anthony (4985 W. 8th St., Greeley, CO 80634) : Educational device [31.25%]
  • Patent:US5967787 19.10.1999 Tsao, Chin-Chen (No. 152, Tung Pei Street, Chung Shan : Educational display with a clock and with numeral and date blocks [11.91%]
  • Patent:US6065970 23.05.2000 Elliott, Karen Crawford : Method of playing an educational mathematical game [33.28%]
  • Patent:US6079710 27.06.2000 Brown, Beatrice T. : Educational number game [20.51%]
  • Patent:US6079983 27.06.2000 Kane, Jr., James T. (94 Adams St. #108, Waltham, MA 02453) : Educational instrument for numbers [30.31%]
  • Patent:US6109924 29.08.2000 Sanford, Sr., Jack G. (301 California Ave., Columbus, KS : Educational card system [32.59%]
  • Patent:US6142785 07.11.2000 Williams, Trudy (5316 Sussex La., Pace, FL 32571) : Educational set of gloves [33.85%]
  • Patent:US6171111 09.01.2001 Buckner, Harry (2140 Sycamore, Apt. 3, Louisville, KY : Educational device for illustrating mathematical relationships [26.49%]
  • Patent:US618198 24.01.1899 Hermann Brodt John Mueller : Educational appliance [50.25%]
  • Patent:US6192594 27.02.2001 Wackowski, Sally L. (Vernal, UT) : Fraction ruler [28.01%]
  • Patent:US6196847 06.03.2001 Karunamuni, Anura J. (3147 McCord Blvd., Tallahassee, FL : Educational mathematical apparatus [12.93%]
  • Patent:US6200140 13.03.2001 Steane, Douglas Allan (P) : Double-beam math balance [11.10%]
  • Patent:US6206372 27.03.2001 Harris, Richard Lionel : Magic squares game [29.82%]
  • Patent:US6308426 30.10.2001 Lim, Hyoun-Gyu : Ellipsograph [12.09%]
  • Patent:US6375468 23.04.2002 Sundararajan, Kalyani (26 Royal Dominion Ct., Bethesda, MD : Educational tool [26.35%]
  • Patent:US6413099 02.07.2002 Rainey, John Desmond (P.O. Box 40-288, Glenfield, Auckland, : Educational device for teaching simple and complex mathematical concepts [36.99%]
  • Patent:US6447300 10.09.2002 Greenberg, Joseph G. : Educational card game [35.57%]
  • Patent:US6551110 22.04.2003 Hastie, Patricia Catherine (P) : Visual educational device for teaching literacy [11.80%]
  • Patent:US6712614 30.03.2004 Henderson, Gerald (P) : Abacus calculator [12.41%]
  • Patent:US692019 28.01.1902 Charles Kolshorn : Educational appliance [51.35%]
  • Patent:US731175 16.06.1903 Jospeh T. Goodman : Educational device [51.35%]
  • Patent:US94772 14.09.1869 J.H.R. Reffelt : Calculator [11.98%]
  • Patent:US964064 12.07.1910 R. F. Smith : Educational Appliance [26.40%]
  • Patent:US969429 06.09.1910 John G. Warfield C.R. Harris : Educational device [50.79%]
  • Patent:US997986 18.07.1911 L. T. Freeman : Educational Appliance [17.92%]
  • Patent:USD168834 17.02.1953 N. Farinacci : Educational Rule [67.91%]
  • Patent:USD231357 16.04.1974 M. R. Meyers and M. Langieri : Educational Mathematical Toy [51.35%]

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