Writing board

Office supplies; artists and teachers materials – Equipment for writing – drawing – or for fine arts – Writing or drawing surface – e.g. – blackboard – drawing board,...

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D19 88, D20 42

Patent

active

D03613470

REFERENCES:
patent: D158527 (1950-05-01), Steele
patent: D186593 (1959-11-01), Warnberg
patent: D217791 (1970-06-01), Schwarz
patent: D254093 (1980-01-01), Adams
patent: D268936 (1983-05-01), Berinson
patent: D291454 (1987-08-01), Broadfoot
patent: D293339 (1987-12-01), Evenson
patent: D330225 (1992-10-01), Cohen
patent: D340081 (1993-10-01), Pannkuk
patent: 1555566 (1925-09-01), Furste
Letraset Catalog, .COPYRGT.1983, p. 223, see circled item, page center.

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