Patents for G09B 19 - Teaching not covered by other main groups of this subclass (16,783) |
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08/15/1978 | US4106216 Positioning system utilizing binary code |
07/25/1978 | US4102543 Bridge scoring device |
07/25/1978 | US4102060 Teaching aid for reading an horological clock |
06/27/1978 | US4096647 Learn-to-dress manual |
06/27/1978 | US4096645 Phonetic teaching device |
06/27/1978 | US4096644 Educational aid |
06/06/1978 | US4092786 Educational device |
05/16/1978 | US4089124 Arithmetic training apparatus |
05/02/1978 | US4086710 Brain damage testing |
04/25/1978 | US4085523 Teaching machine |
04/18/1978 | US4084331 Backgammon teaching device |
04/11/1978 | US4083120 Electronic device for use as a teaching aid |
03/14/1978 | US4078318 Math teaching aid |
02/28/1978 | US4075771 Toy simulating a calculator |
02/28/1978 | US4075770 Metric system teaching and measuring device |
02/21/1978 | US4074442 Apparatus for teaching and playing contract bridge |
01/10/1978 | US4067122 Tutor system |
12/13/1977 | US4063035 Device for visually displaying the auditory content of the human voice |
11/15/1977 | US4057912 Instrument for facilitating the calculation of equivalent values |
10/18/1977 | US4054393 Snap-locking coupler |
10/11/1977 | US4052799 Manually indexed visual test recording apparatus |
10/04/1977 | US4051608 Teaching machine |
10/04/1977 | US4051606 Self-learning apparatus for reading and writing of the Japanese language |
10/04/1977 | US4051605 Competitive educational calculator |
09/13/1977 | US4047308 Coaches field analysis kit |
08/30/1977 | US4044497 Kit with male and female elements having deformable gripping means |
08/23/1977 | US4043057 Teaching aid |
08/23/1977 | US4043055 Teaching aid for accounting |
08/16/1977 | US4041615 Small-motion test device |
08/02/1977 | US4040048 Display of mathematical equations |
07/12/1977 | US4034486 Mathematical beads |
06/21/1977 | US4030211 Instructional system for teaching and testing word pronunciation and spelling |
05/31/1977 | US4026042 Color toy device |
05/24/1977 | US4024789 Tone analysis system with visual display |
05/03/1977 | US4020567 Method and stuttering therapy apparatus |
04/26/1977 | US4019263 Card type language teaching apparatus |
04/19/1977 | US4017984 Shoe tying instructional device |
04/05/1977 | US4016411 Mini electronic calculator with blackboard display format |
04/05/1977 | US4015346 Machine for use in teaching the manner in which a clock indicates time |
04/05/1977 | US4015345 Multiplication learning aid device |
03/29/1977 | US4014554 Board game apparatus |
03/29/1977 | US4014549 Blackjack card deck |
03/22/1977 | US4012852 Teaching apparatus |
03/08/1977 | US4010556 Electronic mathematics trainer |
03/01/1977 | US4009522 Device for the teaching and/or training in the game of bridge |
02/22/1977 | US4008527 Educational accounting device |
02/01/1977 | US4006345 Scheduling tool |
02/01/1977 | US4006305 Blinker practice light |
01/25/1977 | US4005261 Method and apparatus for producing a composite still picture of a moving object in successive positions |
12/28/1976 | US3999310 Arithmetic device |
12/21/1976 | US3998234 Animatable musical toothbrush holder |
12/07/1976 | US3995379 Knitting |
12/07/1976 | US3995378 Mathematics visual teaching aid |
11/23/1976 | US3992786 Apparatus for sequence training |
11/16/1976 | US3991498 Learning aid |
11/16/1976 | US3991485 Driving test range |
10/19/1976 | US3986572 Installation for giving driving instructions |
10/05/1976 | US3983639 Teaching machine |
09/28/1976 | US3982331 Educational board game |
09/14/1976 | US3979840 Teaching and measuring box |
08/31/1976 | US3977682 Game score reproduction device for indoor board games such as chess and go |
08/31/1976 | US3977092 Teaching machine card |
08/24/1976 | US3975834 Simulated flame torch |
08/17/1976 | US3974575 Teaching machine |
07/13/1976 | US3968574 Journalist teaching aid |
07/06/1976 | US3967389 Time telling teaching aid |
06/29/1976 | US3966055 Display holder for dental materials |
06/22/1976 | US3964179 Telephone system teaching apparatus |
06/15/1976 | US3962800 Teaching device particularly adapted for the game of blackjack |
06/01/1976 | US3959893 Educational gaming apparatus |
05/25/1976 | US3958345 Language instruction device |
05/25/1976 | US3958344 Teaching aid for teaching numbers |
05/11/1976 | US3955289 Educational and display apparatus |
04/27/1976 | US3952422 Persistence test apparatus |
04/13/1976 | US3949491 Mathematical teaching aid |
04/13/1976 | US3949488 Educational associativity doll |
04/06/1976 | US3947976 Mathematical problem and number generating systems |
04/06/1976 | US3947975 Educational testing and training device |
03/30/1976 | US3946504 Utterance training machine |
02/24/1976 | US3939577 Practice board for contract bridge games |
02/03/1976 | US3936885 Training simulator and method for nuclear power plant heater and non-linear modeling |
02/03/1976 | US3935649 Multi-purpose mathematical aid |
01/27/1976 | US3934357 Teaching method and apparatus |