Writing instrument

Details Writing instrument Writing instrument

1997-09-09

1998-11-17

Holtje, Martie K.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 41, D19 56, 1906

Patent

active

D04012763

REFERENCES:
patent: D31222 (1899-07-01), Huber
patent: D42553 (1912-05-01), Tolfree
patent: D95135 (1935-04-01), Huber
patent: D136595 (1943-11-01), Pleasants
patent: D141858 (1945-07-01), Ullman
patent: D359307 (1995-06-01), Anavil et al.
patent: 5228794 (1993-07-01), Hochstetler
patent: 5332324 (1994-07-01), Hochstetler

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