Knife sharpener

Details Knife sharpener Knife sharpener

2002-03-27

2003-02-18

Hyder, Philip S. (Department: 2912)

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

Design Patent

active

D0470382

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

REFERENCES:
patent: D309415 (1990-07-01), Shimizu
patent: D323450 (1992-01-01), Shimizu
patent: D357395 (1995-04-01), Friel
patent: D368217 (1996-03-01), Friel
patent: D388304 (1997-12-01), Friel
patent: D392869 (1998-03-01), Rieser

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