Dart pen

Details Dart pen Dart pen

1996-10-16

1998-05-05

Thompson, Martie

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 46, D19 51, D21 49, 473578, 1906

Patent

active

D03940853

REFERENCES:
patent: D280110 (1985-08-01), Brooks
patent: D350984 (1994-09-01), Huang
patent: D367671 (1996-03-01), Pijllman
patent: 3077184 (1963-02-01), Vogel
patent: 3238935 (1966-03-01), Stanaland
patent: 3335706 (1967-08-01), Jenkins
patent: 3957271 (1976-05-01), Kurtz et al.
patent: 5169253 (1992-12-01), Tsao
patent: 5573251 (1996-11-01), Beard et al.

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