Ballpoint pen

Details Ballpoint pen Ballpoint pen

1997-08-11

1998-05-05

Thompson, Martie

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 41, D19 56, 1906

Patent

active

D03940870

REFERENCES:
patent: D153679 (1949-05-01), Gruber
patent: D153905 (1949-05-01), Sager
patent: D332963 (1993-02-01), Anavil et al.
patent: 3100477 (1963-08-01), Ermel
patent: 3326189 (1967-06-01), Baer
patent: 3408148 (1968-10-01), Bross

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