Pen

Details Pen Pen

1991-11-13

1993-06-15

Holtje, Nelson C.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 51, D19 56, D19 57

Patent

active

D03364917

REFERENCES:
patent: D179053 (1956-10-01), Baker
patent: D250767 (1979-01-01), Bulgari
patent: D265741 (1982-08-01), Funahashi
patent: D282378 (1986-01-01), Ohyabu et al.
patent: D312096 (1990-11-01), Vitrac
patent: D312391 (1990-11-01), Vitrac
patent: D313246 (1990-12-01), Porsche
patent: D316271 (1991-04-01), Larizza
patent: D326683 (1992-06-01), Katami

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