Pencil sharpener

Details Pencil sharpener Pencil sharpener

2007-04-17

2007-04-17

Albert, Elizabeth A. (Department: 2913)

Office supplies; artists and teachers materials

Office equipment not elsewhere specified

Perforating or cutting

Design Patent

active

29242077

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

REFERENCES:
patent: 1354400 (1920-09-01), Humphreville
patent: D91676 (1934-03-01), Loewy
patent: D192224 (1962-02-01), Haubert
patent: 3367668 (1968-02-01), Jenkins
patent: D240299 (1976-06-01), Hoffman
patent: D417238 (1999-11-01), Huang
patent: D418547 (2000-01-01), Baggett

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