Electronic educational game

Details Electronic educational game Electronic educational game

1988-02-22

1990-12-18

Burke, Wallace R.

Office supplies; artists and teachers materials

Teaching material

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

D18 7

Patent

active

D03130452

REFERENCES:
patent: D238368 (1976-01-01), Goldsamt
patent: D245341 (1977-08-01), Kitai
patent: D249390 (1978-09-01), Ohie
patent: D272441 (1984-01-01), Carr
patent: D279688 (1985-07-01), Kitai et al.
patent: D289396 (1987-04-01), Wilson et al.
patent: 4690645 (1987-09-01), Ukisu

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