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

Patent

active

D03351440

REFERENCES:
patent: D282378 (1986-01-01), Ohyabu et al.
patent: D312391 (1990-11-01), Vitrac
patent: D312838 (1990-12-01), Vitrac
patent: D321718 (1991-11-01), Ambasz
patent: D325221 (1992-04-01), Ito

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