Pen

Details Pen Pen

1989-01-06

1992-01-21

Dunkins, Bruce W.

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

D03233499

REFERENCES:
patent: D120137 (1940-04-01), Mosf
patent: D137660 (1944-04-01), Severy
patent: D206917 (1967-02-01), Jensey
patent: D209030 (1967-10-01), Bonaud
patent: D218492 (1970-08-01), Bich
patent: D229107 (1973-11-01), Wakai et al.
patent: D240817 (1976-08-01), Funahashi
patent: D264854 (1982-06-01), Spiegel
patent: D284774 (1986-07-01), Ludwig et al.
patent: D288335 (1987-02-01), Regnault
patent: D288450 (1987-02-01), Regnault

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