Ratchet head extension apparatus

Details Ratchet head extension apparatus Ratchet head extension apparatus

2008-03-11

2008-09-23

Barkai, Raphael (Department: 2915)

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

Design Patent

active

D0577270

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

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patent: 7168345 (2007-01-01), Hsieh
patent: 7278338 (2007-10-01), Chen
patent: 2006/0288821 (2006-12-01), Girard

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