Ratchet drive head

Details Ratchet drive head Ratchet drive head

2009-06-27

2009-12-29

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

D0606822

CLAIM:
The ornamental design for a ratchet drive head, as shown and described.

REFERENCES:
patent: D485143 (2004-01-01), Yang
patent: 6745650 (2004-06-01), Chang
patent: D507464 (2005-07-01), Hu
patent: 7000507 (2006-02-01), Lin
patent: D549535 (2007-08-01), Yang
patent: D562656 (2008-02-01), Yang

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