Marking pen

Details Marking pen Marking pen

1990-08-28

1992-06-02

Walsh, Donald P.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 43, D19 57, D27141, D27146, D27157

Patent

active

D03266826

REFERENCES:
patent: D170767 (1953-11-01), Polk
patent: D229446 (1973-11-01), Dahl
patent: D251198 (1979-02-01), Horvath
patent: D276479 (1984-11-01), Mori
patent: D284290 (1986-06-01), Concilio et al.
patent: D303124 (1989-08-01), Li
patent: D309913 (1990-08-01), Shintani
patent: D314590 (1991-02-01), Molina
patent: D314837 (1991-02-01), Nitta
patent: 4728212 (1988-03-01), Spector

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