Screwdriver

Bleaching and dyeing; fluid treatment and chemical modification – Treatment of hides – skins – feathers and animal tissues – Tanning

Design Patent

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Details

Design Patent

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D0601399

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

REFERENCES:
patent: 3742787 (1973-07-01), Whiteford
patent: D248922 (1978-08-01), Osak, Jr.
patent: D276211 (1984-11-01), Lee
patent: D278027 (1985-03-01), Tang
patent: D278593 (1985-04-01), MacGregor
patent: D387964 (1997-12-01), Urvoy
patent: D388680 (1998-01-01), Lin
patent: D401493 (1998-11-01), Lin
patent: D410371 (1999-06-01), Sheu
patent: 5967003 (1999-10-01), Lin
patent: D432887 (2000-10-01), Lossen
patent: D573862 (2008-07-01), Kao
patent: D592313 (2009-05-01), Levine

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