Screwdriver bit

Details Screwdriver bit Screwdriver bit

2002-04-12

2003-05-13

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

D0474388

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

REFERENCES:
patent: D311483 (1990-10-01), Espin
patent: D312034 (1990-11-01), Espin
patent: D410372 (1999-06-01), Strauch
patent: D431768 (2000-10-01), Feik
patent: 6164171 (2000-12-01), Kaneko et al.
patent: D455627 (2002-04-01), Song
patent: 6367358 (2002-04-01), Stacy
patent: 6397710 (2002-06-01), Baker

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