Writing instrument

Details Writing instrument Writing instrument

1994-03-11

1995-05-02

Thompson, Martie

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 46, D19 51

Patent

active

D03579360

REFERENCES:
patent: D33677 (1900-12-01), Chandler
patent: D56680 (1920-11-01), Sawyier
patent: D89339 (1933-02-01), Hale
patent: D92534 (1934-06-01), Hale
patent: D100845 (1936-08-01), Bloser
patent: D142361 (1945-09-01), Hanle
patent: D200511 (1965-03-01), Fehling et al.
patent: D295421 (1988-04-01), Young
patent: D344541 (1994-02-01), Guo
patent: 5228794 (1993-07-01), Hochstetler

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