Office supplies; artists and teachers materials – Teaching material – Sensory feedback – e.g. – audio-visual teaching machine
Patent
1993-11-10
1995-05-16
Gandy, James M.
Office supplies; artists and teachers materials
Teaching material
Sensory feedback, e.g., audio-visual teaching machine
Patent
active
D03584216
REFERENCES:
patent: D197339 (1964-01-01), Jaffe
patent: D268274 (1983-03-01), Greenburg
patent: D333060 (1993-02-01), Perego
patent: D348483 (1994-07-01), Chow et al.
patent: D349300 (1994-08-01), Lau
patent: 4065125 (1977-12-01), Cham
Photocopies of portions of packaging for "Activity Table", Fisher-Price, Inc., dated 1992.
Chow Chi Ka-Wah
Tsang Frederick Lam-Tak
Burgess Pamela
Gandy James M.
VTECH Industries, Inc.
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