Pencil sharpener

Details Pencil sharpener Pencil sharpener

2000-03-01

2002-07-09

Holtje, Martie K. (Department: 2913)

Office supplies; artists and teachers materials

Office equipment not elsewhere specified

Perforating or cutting

CD19S097000, CD21S656000

Design Patent

active

D0460115

CLAIM:
The ornamental design for a pencil sharpener, as shown.

REFERENCES:
patent: D169980 (1953-07-01), Knapp
patent: 3980113 (1976-09-01), Birdsall
patent: D252562 (1979-08-01), Koert
patent: D308154 (1990-05-01), Tow
patent: D408474 (1999-04-01), Giornalista
patent: D412344 (1999-07-01), Clark
patent: D423892 (2000-05-01), Sawyer

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