Felt-tipped pen

Details Felt-tipped pen Felt-tipped pen

1990-06-14

1992-12-22

Holtje, Nelson C.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 43, D19 56, D19 57

Patent

active

D03319407

REFERENCES:
patent: D152847 (1949-02-01), Weiss
patent: D153643 (1949-05-01), Snodgrass
patent: D223307 (1972-04-01), Nackolds
patent: D248865 (1978-08-01), Sussman et al.
patent: D259792 (1981-07-01), Itoh et al.
patent: D301252 (1989-05-01), Ohashi et al.
patent: D313245 (1990-12-01), Iwase
patent: 2695028 (1954-11-01), Dulberg
patent: 3203025 (1965-08-01), Schreur
patent: 3345674 (1967-10-01), De Groft

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