Pen

Details Pen Pen

1991-06-26

1992-12-15

Holtje, Nelson C.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 43, D19 56, D19 57

Patent

active

D03317790

REFERENCES:
patent: D272750 (1984-02-01), Luntz
patent: D285730 (1986-09-01), Bulwick
patent: D286547 (1986-11-01), Koizumi et al.
patent: D305551 (1990-01-01), Oka
patent: D312096 (1990-01-01), Vitrac
patent: D313245 (1990-12-01), Iwase
patent: D318294 (1991-07-01), Cho-Kai
patent: D319845 (1991-09-01), Grotsch et al.
patent: D321718 (1991-11-01), Ambasz
patent: D326683 (1992-06-01), Katami

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