Knife sharpening tool

Details Knife sharpening tool Knife sharpening tool

2001-03-16

2002-02-05

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

D0453290

CLAIM:
The ornamental design for a knife sharpening tool, as shown.

REFERENCES:
patent: D276886 (1984-12-01), Carter
patent: D352440 (1994-11-01), Perigny
patent: D365740 (1996-01-01), Smith
patent: D367598 (1996-03-01), Fortenberry
patent: D369081 (1996-04-01), Byers et al.
patent: D374804 (1996-10-01), Hughes
patent: D387262 (1997-12-01), Byers et al.
patent: D394596 (1998-05-01), Byers et al.
patent: D404278 (1999-01-01), Gore
patent: D410185 (1999-05-01), Huber

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