Pen

Details Pen Pen

1986-07-07

1989-03-14

Dunkins, Bruce W.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 42

Patent

active

D03002292

REFERENCES:
patent: D62198 (1923-04-01), Stehl
patent: D65683 (1924-09-01), Benjamin
patent: D100845 (1936-08-01), Bloser
patent: D257857 (1981-01-01), Leuenberger et al.

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