Writing board

Details Writing board Writing board

1987-11-02

1991-03-12

Dunkins, Bruce W.

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, D19 92, D19 95

Patent

active

D03153665

REFERENCES:
patent: D114382 (1939-04-01), Kemp
patent: D127480 (1941-05-01), Corcoran
patent: D140921 (1945-04-01), Vermann
patent: D159473 (1950-08-01), Cottier
patent: D174188 (1955-03-01), Martin
patent: D231956 (1974-06-01), Meagher
patent: D268687 (1983-04-01), Rogers
patent: D276732 (1984-12-01), Marquez
patent: D279630 (1985-07-01), Bart
patent: D282792 (1986-03-01), Zinbarg
patent: D308542 (1990-06-01), De Witt

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