Office supplies; artists and teachers materials – Teaching material
Patent
1985-04-22
1988-04-19
Ansher, Bernard
Office supplies; artists and teachers materials
Teaching material
Patent
active
D02952912
REFERENCES:
patent: D203982 (1966-03-01), Ruderian
patent: D233522 (1974-11-01), Majewski
patent: 2899757 (1959-08-01), Webb
patent: 3094792 (1963-06-01), Morgan et al.
Ansher Bernard
Shooman Theodore M.
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