Mechanical pencil

Details Mechanical pencil Mechanical pencil

1984-05-09

1986-11-18

Word, George P.

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Marking instrument

D19 49

Patent

active

D02867893

REFERENCES:
patent: D145586 (1946-09-01), Reynolds
patent: D174250 (1955-03-01), Daniels
patent: D194296 (1962-12-01), Lovejoy
patent: D269445 (1983-06-01), Kruckel
patent: D280421 (1985-09-01), Giugiaro

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