Writing instrument

Details Writing instrument Writing instrument

1990-12-11

1993-01-19

Holtje, Nelson C.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 43, D19 51, D19 57

Patent

active

D03326268

REFERENCES:
patent: D201852 (1965-08-01), Housman
patent: D260406 (1981-08-01), Itoh
patent: D268598 (1983-04-01), Mizutani et al.
patent: D281512 (1985-11-01), Kobori
patent: D286163 (1986-10-01), Shintani
patent: D286547 (1986-11-01), Koizumi et al.
patent: D299973 (1989-02-01), Campello et al.
patent: D313620 (1991-01-01), Yazaki

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