Ball point pen

Details Ball point pen Ball point pen

1992-02-25

1993-08-03

Holtje, Nelson C.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 49, D19 55

Patent

active

D03380386

REFERENCES:
patent: D089846 (1933-05-01), Anderson
patent: D120137 (1940-04-01), Most
patent: D162805 (1951-04-01), Ferber
patent: D169307 (1953-04-01), Ferber
patent: D175864 (1955-10-01), Steinberg et al.
patent: D188972 (1960-10-01), Young
patent: D328917 (1992-08-01), Shike et al.

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