Casing for a writing instrument

Details Casing for a writing instrument Casing for a writing instrument

1986-11-24

1990-02-20

Dunkins, Bruce W.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 41, D19 43, D19 57

Patent

active

D03061787

REFERENCES:
patent: D89815 (1933-05-01), Tefft
patent: D97174 (1935-08-01), Bienenstein
patent: D143051 (1945-11-01), Waldinger
patent: D144358 (1946-04-01), Fish et al.
patent: D155806 (1949-01-01), Kahn

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