Office supplies; artists and teachers materials – Teaching material – Demonstrator or exhibitor
Patent
1989-12-07
1993-08-10
Gandy, James M.
Office supplies; artists and teachers materials
Teaching material
Demonstrator or exhibitor
D21107, D21108
Patent
active
D03382370
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patent: 3554584 (1971-01-01), Brumlik
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patent: 4877406 (1989-10-01), Wilk
Buist Peter H.
Raffler Alois A.
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