Electronic educational game housing

Details Electronic educational game housing Electronic educational game housing

1992-11-13

1995-05-09

Vinson, Brian N.

Office supplies; artists and teachers materials

Teaching material

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

D14100, D21 13

Patent

active

D03581713

REFERENCES:
patent: D271029 (1983-10-01), Nagel et al.
patent: D299472 (1989-01-01), Phinney
patent: D308510 (1990-06-01), Cheung
patent: D310071 (1990-08-01), Kit
patent: D330048 (1992-10-01), Cheung et al.
patent: 4681548 (1987-07-01), Lemelson
1987 Video Technology Industries, Inc. catalog, pp. 8-9.
1990 Video Technology Industries, Inc. catalog, pp. 18-19.
1992 Video Technology Industries, Inc. catalog, pp. 7, 11.

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