Office supplies; artists and teachers materials – Equipment for writing – drawing – or for fine arts – Writing or drawing surface – e.g. – blackboard – drawing board,...
Patent
1992-10-20
1995-05-23
Holtje, Nelson C.
Office supplies; artists and teachers materials
Equipment for writing, drawing, or for fine arts
Writing or drawing surface, e.g., blackboard, drawing board,...
D19 35, D19 88, D21 59
Patent
active
D03586081
REFERENCES:
patent: D278253 (1985-04-01), Evenson
patent: D279490 (1985-07-01), Mak
patent: D327713 (1992-07-01), Thomson et al.
patent: D330042 (1992-10-01), Yamaguchi et al.
patent: D336751 (1993-06-01), Mak
patent: 3352616 (1967-11-01), Linger
patent: 5163846 (1992-11-01), Lee
Holtje Nelson C.
Hop Lee Cheong Industrial Co. Ltd.
Thompson Martie
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