Drilling screwdriver

Details Drilling screwdriver Drilling screwdriver

2003-03-20

2004-01-27

Coles, Doris V. (Department: 2913)

Bleaching and dyeing; fluid treatment and chemical modification

Treatment of hides, skins, feathers and animal tissues

Tanning

Design Patent

active

D0485738

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

REFERENCES:
patent: D302646 (1989-08-01), Sasaki et al.
patent: D396177 (1998-07-01), Schultz
patent: D396789 (1998-08-01), Murray
patent: D402871 (1998-12-01), Clowers et al.
patent: D419413 (2000-01-01), Heun
patent: D431766 (2000-10-01), Zurwelle
patent: D437759 (2001-02-01), Breit et al.
patent: D457407 (2002-05-01), Pretzell
patent: 6543549 (2003-04-01), Riedl et al.

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