Office supplies; artists and teachers materials – Equipment for writing – drawing – or for fine arts – Writing or drawing surface – e.g. – blackboard – drawing board,...
Patent
1983-06-17
1986-01-28
Word, George P.
Office supplies; artists and teachers materials
Equipment for writing, drawing, or for fine arts
Writing or drawing surface, e.g., blackboard, drawing board,...
Patent
active
D02823799
REFERENCES:
patent: D183971 (1958-11-01), Mortrude
patent: 475350 (1892-05-01), Shiley
patent: 482127 (1892-09-01), Johnson
patent: 3492727 (1970-02-01), Klok
patent: 4380124 (1983-04-01), Smith et al.
Rogers Colin W.
Smith Joseph
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