Felt tip pen

Details Felt tip pen Felt tip pen

1977-08-31

1979-07-10

Stearman, Joel

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 48, D19 50, D1906

Patent

active

D02523337

REFERENCES:
patent: D191185 (1961-08-01), Burnham
patent: D234226 (1975-01-01), Malm et al.
patent: D239112 (1976-03-01), Marynissen
patent: 3343292 (1967-09-01), Jorgensen

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