Combined mechanical pencil and scale therefor

Details Combined mechanical pencil and scale therefor Combined mechanical pencil and scale therefor

1986-02-24

1989-05-09

Ansher, Bernard

Office supplies; artists and teachers materials

Equipment for writing, drawing, or for fine arts

Plural or combined

D10 71

Patent

active

D03010430

REFERENCES:
patent: D22511 (1893-06-01), Goldsmith
patent: D256372 (1980-08-01), Chu
patent: D283334 (1986-04-01), Seibt
patent: 1038857 (1912-09-01), Crane
patent: 1677387 (1928-07-01), Gaidos
patent: 4030841 (1977-06-01), Balasty
patent: 4302121 (1981-11-01), Kim

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