Office supplies; artists and teachers materials – Equipment for writing – drawing – or for fine arts – Writing or drawing surface – e.g. – blackboard – drawing board,...
Patent
1981-05-07
1983-08-23
Kemper, Catherine E.
Office supplies; artists and teachers materials
Equipment for writing, drawing, or for fine arts
Writing or drawing surface, e.g., blackboard, drawing board,...
D20 19, D1907
Patent
active
D02702738
REFERENCES:
patent: D74987 (1928-04-01), Poulton
patent: D78470 (1929-05-01), Leigh
Godkin Jerry
Kemper Catherine E.
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