Electric pencil sharpener

Details Electric pencil sharpener Electric pencil sharpener

1998-03-06

1999-02-16

Holtje, Martie K.

Office supplies; artists and teachers materials

Office equipment not elsewhere specified

Perforating or cutting

D19 65, 1906

Patent

active

D04058305

REFERENCES:
patent: D152554 (1949-02-01), May
patent: D250035 (1978-10-01), Kajiwara
patent: D251008 (1979-02-01), Kajiwara
patent: D320812 (1991-10-01), Vuen
patent: D324700 (1992-03-01), Shimoo et al.
patent: D354987 (1995-01-01), Yuen
patent: 3059617 (1962-10-01), Swimmer et al.
patent: 4601316 (1986-07-01), Verdi

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