Office supplies; artists and teachers materials – Teaching material – Sensory feedback – e.g. – audio-visual teaching machine
Patent
1992-03-10
1994-08-02
Gandy, James M.
Office supplies; artists and teachers materials
Teaching material
Sensory feedback, e.g., audio-visual teaching machine
D21 13, D14106
Patent
active
D03492982
REFERENCES:
patent: D312451 (1990-11-01), Katoh et al.
patent: D313979 (1991-01-01), Miyakuni
patent: D317176 (1991-05-01), Cheung
1988 catalog, Video Technology Industries, Inc., p. 14.
1991 catalog, Video Technology Industries, Inc., p. 10.
1991 catalog, Video Technology Electronics, Ltd., p. 14.
Burgess Pamela
Gandy James M.
VTECH Industries, Inc.
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