Writing instrument cap

Details Writing instrument cap Writing instrument cap

1992-06-30

1993-04-27

Holtje, Nelson C.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Element or attachment

D19 49, D19 56

Patent

active

D03351459

REFERENCES:
patent: D103387 (1937-03-01), Chesler
patent: D259792 (1981-07-01), Itoh et al.
patent: D284774 (1986-07-01), Ludvig et al.
patent: D305245 (1989-10-01), Chuang
patent: D323349 (1992-01-01), Gomez
patent: D327911 (1992-07-01), Paisson

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