Push button mechanical pencil

Details Push button mechanical pencil Push button mechanical pencil

1984-02-24

1986-09-30

Word, George P.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 48

Patent

active

D02859378

REFERENCES:
patent: D146335 (1947-02-01), Colomy
patent: D147982 (1947-11-01), Lynn
patent: D226338 (1973-02-01), Tailer
patent: D229110 (1973-11-01), Corte
patent: D265740 (1982-08-01), Pook
patent: 3864046 (1975-02-01), Butka
Parker Circular No. 9508, 2/60 No. d-1.

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