Pen cap

Details Pen cap Pen cap

1991-06-10

1993-10-05

Holtje, Nelson C.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Element or attachment

D19 51

Patent

active

D03400697

REFERENCES:
patent: D273398 (1984-04-01), Zierhut
patent: D284676 (1986-07-01), Malm
patent: D310542 (1990-09-01), Regnault
patent: D327911 (1992-07-01), Poisson
patent: D328311 (1992-07-01), Nitta
patent: 5066156 (1991-11-01), Petrillo et al.
patent: 5176460 (1993-01-01), Garry

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