Ballpoint pen

Details Ballpoint pen Ballpoint pen

1995-12-28

1996-10-29

Thompson, Martie

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 48, D19 51, D19 56

Patent

active

D03751244

REFERENCES:
patent: D112750 (1938-12-01), Blake
patent: D155561 (1949-10-01), Weiss
patent: D283901 (1986-05-01), Horntrich
patent: D324069 (1992-02-01), Katami
patent: D339607 (1993-09-01), White et al.
patent: D351416 (1994-10-01), Oka et al.
patent: D361783 (1995-08-01), Wei

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