Felt pen

Details Felt pen Felt pen

1980-11-14

1982-08-10

Word, George P.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 56, D1906

Patent

active

D02657414

REFERENCES:
patent: D73416 (1927-09-01), Schnell
patent: 228813 (1977-10-01), Wakai et al.
patent: D233631 (1974-11-01), Defores
patent: 251301 (1979-03-01), Malamoud
patent: 251302 (1979-03-01), Malamoud
patent: 252333 (1979-07-01), Funahashi
patent: D258217 (1981-02-01), Sakaoka

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