Plural-nibbed writing instrument

Details Plural-nibbed writing instrument Plural-nibbed writing instrument

1989-12-20

1992-03-10

Dunkins, Bruce W.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Plural or combined

D19 48, D19 51

Patent

active

D03245420

REFERENCES:
patent: D141850 (1945-07-01), Sanders
patent: D150647 (1948-08-01), Pearl
patent: D152847 (1949-02-01), Weiss
patent: D199564 (1964-11-01), Koss
patent: D307602 (1990-05-01), Lee
patent: D319261 (1991-08-01), Lee
patent: 2406171 (1946-08-01), Smith
patent: 2571620 (1951-10-01), Sala
patent: 2676570 (1954-04-01), Fahringer
patent: 4213717 (1980-07-01), Lin

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