Writing instrument

Details Writing instrument Writing instrument

1992-03-20

1993-08-03

Holtje, Nelson C.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 47, D19 56

Patent

active

D03380394

REFERENCES:
patent: D146335 (1947-02-01), Colomy
patent: D175804 (1925-10-01), Steinberg et al.
patent: D249888 (1978-10-01), Barnes
patent: D253595 (1979-12-01), Vong
patent: D314978 (1991-02-01), Oka
patent: D321719 (1991-11-01), Nitta
patent: D329874 (1992-09-01), Cuadrado
patent: 3709620 (1973-01-01), Miyamoto

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