Office supplies; artists and teachers materials – Equipment for writing – drawing – or for fine arts – Writing or drawing surface – e.g. – blackboard – drawing board,...
Patent
1990-06-01
1993-09-14
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 65
Patent
active
D03393798
REFERENCES:
patent: D165038 (1951-10-01), Windhorst
patent: D196306 (1963-09-01), Bodenbach
patent: D228132 (1973-08-01), Fichtel
patent: D267608 (1983-01-01), Brescia et al.
patent: 4133123 (1979-01-01), Anderson
Visual Systems.COPYRGT. 1988, see p. 228, drawing board (circled) upper left.
Holtje Nelson C.
Thompson Martha
Vrsansky C. J.
Westinghouse Electric Corp.
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