Writing instrument

Details Writing instrument Writing instrument

1991-12-04

1993-12-14

Holtje, Nelson C.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 41

Patent

active

D03422798

REFERENCES:
patent: D129159 (1941-08-01), Dreyfuss
patent: D129295 (1941-09-01), Stempel
patent: D161826 (1951-02-01), Ferber
patent: D169307 (1953-04-01), Ferber
patent: D188972 (1960-10-01), Young
patent: D199653 (1964-11-01), Weissenborn
patent: D202952 (1965-11-01), Stephens
patent: D209030 (1967-10-01), Bonaud

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