Drawing 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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Details

D19 35, D19 78, D19 83, D21 59

Patent

active

D03599850

REFERENCES:
patent: D280997 (1985-10-01), Thomson et al.
patent: D282183 (1986-01-01), Shiraishi
patent: D325939 (1992-05-01), Kroll
patent: D336751 (1993-06-01), Mak
patent: D344975 (1994-03-01), Tarozzi
patent: D345177 (1994-03-01), Mak
patent: 3352616 (1967-11-01), Linger
patent: 4801266 (1989-01-01), Kinberg
patent: 5163846 (1992-11-01), Lee

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