Writing instrument

Details Writing instrument Writing instrument

1997-09-03

1998-09-01

Thompson, Martie

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 41, D19 56, 1906

Patent

active

D03977234

REFERENCES:
patent: D177560 (1956-05-01), Ensign et al.
patent: D213341 (1969-02-01), Fields
patent: D215626 (1969-10-01), Jonkers
patent: D223688 (1972-05-01), Schnur et al.
patent: D279993 (1985-08-01), Oka
patent: D342089 (1993-12-01), Anavil et al.
patent: D342090 (1993-12-01), Anavil et al.
patent: 2608953 (1952-09-01), Kollsman

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