Ballpoint pen

Details Ballpoint pen Ballpoint pen

1994-03-01

1995-12-19

Thompson, Martie

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 51, D19 56, D19 57

Patent

active

D03653641

REFERENCES:
patent: D83671 (1931-03-01), Esterow
patent: D89846 (1933-05-01), Anderson
patent: D106459 (1937-10-01), Sumi
patent: D124725 (1941-01-01), Ornstein
patent: D151658 (1948-11-01), Sams
patent: D179615 (1957-01-01), Spatz
patent: D182311 (1958-03-01), Steinberg
patent: D213739 (1969-04-01), Konwiser
patent: D263318 (1982-03-01), Oka

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