Housing for electronic instructional game apparatus

Office supplies; artists and teachers materials – Teaching material – Sensory feedback – e.g. – audio-visual teaching machine

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D21 13, D14106

Patent

active

D03497305

REFERENCES:
patent: D310071 (1990-08-01), Kit
patent: D321377 (1991-11-01), Ko
patent: D330703 (1992-11-01), Cheung et al.
patent: D335909 (1993-05-01), Swanson et al.
1989 Video Technology Industries, Inc. Catalog, p. 6.
1991 Video Technology Electronics, Ltd. Ctalog, p. 5, top item.
Advantech Flyer for "I.Q. Unlimited" (1991).

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