Writing instrument

Details Writing instrument Writing instrument

2000-02-23

2000-12-05

Holtje, Martie K.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 54, 1906

Patent

active

D04347986

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patent: 4123853 (1978-11-01), Dickensheet
patent: 4146978 (1979-04-01), Breslow
patent: 4928416 (1990-05-01), Penno
patent: 4948284 (1990-08-01), Lingott
patent: 4983062 (1991-01-01), Hour
patent: 5368406 (1994-11-01), Hanshaw

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