Cap for writing tools

Details Cap for writing tools Cap for writing tools

1988-10-25

1991-06-04

Dunkins, Bruce W.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Element or attachment

D19 51, D19 56

Patent

active

D03173240

REFERENCES:
patent: D254315 (1980-02-01), Carre
patent: D259642 (1981-06-01), Gomez
patent: D259793 (1981-07-01), Carre
patent: D263482 (1982-03-01), Carre
patent: D270843 (1983-10-01), Itoh
patent: D273400 (1984-04-01), Zierhut
patent: D305245 (1989-12-01), Chuang
patent: D310542 (1990-09-01), Regnault
patent: D310684 (1990-09-01), Itoh
patent: D312658 (1990-12-01), Sumino

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