Pencil sharpener

Details Pencil sharpener Pencil sharpener

2007-08-28

2007-08-28

Albert, Elizabeth A. (Department: 2913)

Office supplies; artists and teachers materials

Office equipment not elsewhere specified

Perforating or cutting

Design Patent

active

29231318

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

REFERENCES:
patent: D191247 (1961-08-01), McWilliams
patent: D244198 (1977-05-01), Kamensky
patent: 5601006 (1997-02-01), Quinn et al.
patent: D393657 (1998-04-01), Bennett
patent: D396249 (1998-07-01), Carlson
patent: D400586 (1998-11-01), Yuen

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