Electronic game

Details Electronic game Electronic game

1988-04-15

1991-06-04

Burke, Wallace R.

Office supplies; artists and teachers materials

Teaching material

Sensory feedback, e.g., audio-visual teaching machine

Patent

active

D03173259

REFERENCES:
patent: D234360 (1975-02-01), Duncan
patent: D234950 (1975-04-01), Aumann
patent: D256028 (1980-06-01), Lawrence et al.
patent: D280217 (1985-08-01), Tomozawa et al.
patent: D308510 (1990-06-01), Cheung
patent: 3729836 (1973-05-01), Mayeda
patent: 3771255 (1973-11-01), Carabet et al.
patent: 4001947 (1977-01-01), Kilby
patent: 4639225 (1987-01-01), Washizuka

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