Ball point pen

Details Ball point pen Ball point pen

1977-06-24

1979-09-18

Stearman, Joel

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 56, D19 57, D1906

Patent

active

D02529343

REFERENCES:
patent: D206917 (1967-02-01), Jensen
patent: D242245 (1976-11-01), Butler et al.

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