Screwdriver

Details Screwdriver Screwdriver

2007-03-13

2007-03-13

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

29227349

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

REFERENCES:
patent: D347373 (1994-05-01), Tsai
patent: D376528 (1996-12-01), Krapowicz
patent: D393582 (1998-04-01), Amtenbrink et al.
patent: D413782 (1999-09-01), Krapowicz
patent: D419847 (2000-02-01), Chen
patent: D432382 (2000-10-01), Hsu
patent: D432383 (2000-10-01), Chen
patent: D484767 (2004-01-01), Hsu
patent: D508192 (2005-08-01), Wang

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