Ball-point pen

Details Ball-point pen Ball-point pen

1998-04-23

1999-01-19

Holtje, Martie K.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 43, D19 51, D19 56, D19 57, 1906

Patent

active

D04044274

REFERENCES:
patent: D162805 (1951-04-01), Ferber
patent: D169307 (1953-04-01), Ferber
patent: D189852 (1961-03-01), Cox et al.
patent: D286547 (1986-11-01), Koizumi et al.
patent: D338038 (1993-08-01), Oka et al.
patent: D359758 (1995-06-01), Inami
patent: D363308 (1995-10-01), Sekine

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