Writing implement

Details Writing implement Writing implement

1988-07-18

1991-04-23

Holtje, Nelson C.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 43, D19 56, D19 57

Patent

active

D03164276

REFERENCES:
patent: D112401 (1938-11-01), Andrews
patent: D115288 (1939-06-01), Fish
patent: D118872 (1940-02-01), Vassos
patent: D143049 (1945-11-01), Waldinger
patent: D143052 (1945-11-01), Waldinger
patent: D149672 (1948-05-01), Phillips
patent: D152030 (1948-12-01), Shupack
patent: D286164 (1986-10-01), Tinz
patent: D287603 (1987-01-01), Bruhn
patent: D306458 (1990-03-01), Lecce

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