Ball point pen

Details Ball point pen Ball point pen

1990-02-28

1993-02-23

Holtje, Nelson C.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 51, D19 56, D19 57

Patent

active

D03334864

REFERENCES:
patent: D108899 (1938-03-01), Tammen et al.
patent: D143048 (1945-11-01), Waldinger
patent: D213531 (1969-03-01), Wakai
patent: D251302 (1979-03-01), Malamoud
patent: D252998 (1979-09-01), Turner
patent: D274628 (1984-07-01), Malamoud
patent: D295985 (1988-05-01), Grossiord

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