Ballpoint pen

Details Ballpoint pen Ballpoint pen

1998-03-30

1999-01-05

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

D04037049

REFERENCES:
patent: D340476 (1993-10-01), Hiromori
patent: D341623 (1993-11-01), Chuang
patent: D351417 (1994-10-01), Oka
patent: D366498 (1996-01-01), Abe et al.
patent: D378761 (1997-04-01), Sekine
patent: D389866 (1998-01-01), Boix Gacia

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