Marking instrument

Details Marking instrument Marking instrument

1991-06-27

1992-03-10

Dunkins, Bruce W.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 48, D19 55, D19 56

Patent

active

D03245438

REFERENCES:
patent: D191481 (1961-10-01), Conley
patent: D230403 (1974-02-01), Englund
patent: D242855 (1976-12-01), Grinberg
patent: D265212 (1982-06-01), Spiegel
patent: D266258 (1982-09-01), Lockwood et al.
patent: D283901 (1986-05-01), Horntrich
patent: D286549 (1986-11-01), Erlendson
patent: D294600 (1988-03-01), Funahashi et al.
patent: D313245 (1990-12-01), Iwase
patent: D314978 (1991-02-01), Oka

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