Drawing board

Details Drawing board Drawing board

1992-10-20

1994-03-15

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 88, D21 59

Patent

active

D03451771

REFERENCES:
patent: D38127 (1906-07-01), Whiting
patent: D279489 (1985-07-01), Mak
patent: D293740 (1988-01-01), Nadeau
patent: D300937 (1989-05-01), Yabushita et al.
patent: D327498 (1992-06-01), Watson et al.
patent: D336751 (1993-06-01), Mak
patent: 3352616 (1967-11-01), Linger
patent: 5163846 (1992-11-01), Lee

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