Ballpoint pen

Details Ballpoint pen Ballpoint pen

1989-04-25

1992-06-09

Walsh, Donald P.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 43, D19 51, D19 56, D19 57

Patent

active

D03268683

REFERENCES:
patent: D139903 (1945-01-01), Baff
patent: D221265 (1971-07-01), Wakai
patent: D280420 (1985-09-01), Verhaegue
patent: D280737 (1985-09-01), Verhaegue
patent: D282754 (1986-02-01), LeBlanc et al.
Jacobs Gardner .COPYRGT.1988 see p. 583, item K, Pentel pen upper right corner.

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