Woodworking drill bit

Details Woodworking drill bit Woodworking drill bit

2008-01-15

2008-01-15

Watson, Gary D. (Department: 2915)

Machines not elsewhere specified

Material working, abrading, or founding machinery

Element or attachment

Design Patent

active

29252446

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

REFERENCES:
patent: 5036 (1847-03-01), Newtrap
patent: 6221 (1849-03-01), Snaforn
patent: 290812 (1883-12-01), Swan
patent: 400659 (1889-04-01), Gerard
patent: 4536107 (1985-08-01), Sandy et al.
patent: D408424 (1999-04-01), Schmotzer
patent: 6361255 (2002-03-01), Schmotzer
patent: D504446 (2005-04-01), Kobayashi
patent: 2003/0035694 (2003-02-01), Liao
patent: 2005/0169720 (2005-08-01), Kobayashi

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