Writing instrument

Details Writing instrument Writing instrument

1999-02-04

2000-01-11

Holtje, Martie K.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 48, D19 51, D21725, 1906

Patent

active

D04188691

REFERENCES:
patent: D47473 (1915-06-01), Reitler
patent: D47852 (1915-09-01), Kulow
patent: D48227 (1915-11-01), Kulow
patent: D155152 (1949-09-01), Greenstein et al.
patent: D160309 (1950-10-01), Fainberg et al.
patent: D332806 (1993-01-01), Blimline
patent: D368114 (1996-03-01), Hyvonen
patent: 5590875 (1997-01-01), Young
patent: 5711728 (1998-01-01), Marcelo

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