Ball point pen

Details Ball point pen Ball point pen

1982-09-13

1985-01-29

Word, George P.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 55, D19 57

Patent

active

D02773937

REFERENCES:
patent: D259792 (1981-07-01), Itoh et al.
patent: D261010 (1981-09-01), Itoh
patent: D266769 (1982-11-01), Camps
patent: D270547 (1983-09-01), Bajusz

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