Bulletin 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 90, D20 42, 1906

Patent

active

D03841049

REFERENCES:
patent: D258297 (1981-02-01), Pittman et al.
patent: D270273 (1983-08-01), Kosmicki
patent: D312066 (1990-11-01), Fabbrini
patent: D324073 (1992-02-01), Pinkos
patent: D356825 (1995-03-01), Krawitz
patent: D365121 (1995-12-01), Krawitz
patent: D371806 (1996-07-01), Boone et al.
patent: 3503835 (1970-03-01), Hermann
patent: 5342665 (1994-08-01), Krawitz
Toys and Novelties, Sep. 1961, p. 119, see blackboard, lower left.

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