Hole saw

- Credo Tool Company
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Description

FIG. 1 shows a perspective view of the hole saw of the present design;

FIG. 2 shows a right side view of the hole saw of the present design, the left side view diametrically opposite the right side view of FIG. 2 being a mirror image;

FIG. 3 shows a top view of the hole saw of the present design; and,

FIG. 4 shows a bottom view of the hole saw of the present design.

The broken lines disclosure illustrated in the drawings are for illustration purposes only and form no part of the claimed design.

Referenced Cited
U.S. Patent Documents
3880546 April 1975 Segal
4069824 January 24, 1978 Weinstock
4072441 February 7, 1978 LaPointe
4303357 December 1, 1981 Maker
4741651 May 3, 1988 Despres
5597274 January 28, 1997 Behner
Patent History
Patent number: D391974
Type: Grant
Filed: Aug 9, 1996
Date of Patent: Mar 10, 1998
Assignee: Credo Tool Company (Woodburn, OR)
Inventor: David T. Brutscher (Louisville, KY)
Primary Examiner: Antoine Duval Davis
Law Firm: McDermott, Will & Emery
Application Number: 0/58,213
Classifications
Current U.S. Class: Cutting Tool, E.g., Drill Bit, Etc. (D15/139)
International Classification: 1509;