Knife grinder

Details Knife grinder Knife grinder

2006-05-09

2006-05-09

Hyder, Philip S. (Department: 2915)

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

Design Patent

active

D0520326

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

REFERENCES:
patent: 511397 (1893-12-01), Beers et al.
patent: D144878 (1946-05-01), Todd
patent: D250452 (1978-12-01), Heischman
patent: D334081 (1993-03-01), Lampasona
patent: D397517 (1998-08-01), Choyee
patent: D480620 (2003-10-01), Tu
patent: D486607 (2004-02-01), Chien
patent: D493834 (2004-08-01), Yeh

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