End mill bit

- Gn Tool Co., Ltd.
Description

FIG. 1 is a front elevational view of an end mill bit showing my new design, the rear side being a mirror image thereof;

FIG. 2 is a right side elevational view thereof, and the left side being a mirror image thereof;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D30485 April 1899 Prentiss
213937 April 1879 Reichardt
1434870 November 1922 Brubaker
1490069 April 1924 Gammons
1508594 September 1924 Brubaker
1630602 May 1925 Blanco
1875362 September 1932 Well
4507028 March 26, 1985 Matsushita
4957397 September 18, 1990 Huff
Patent History
Patent number: D328557
Type: Grant
Filed: Dec 7, 1988
Date of Patent: Aug 11, 1992
Assignee: Gn Tool Co., Ltd. (Nara)
Inventor: Takayuki Nishimura (Nara)
Primary Examiner: Donald P. Walsh
Assistant Examiner: J. H. Musgrove
Law Firm: Koda and Androlia
Application Number: 7/281,236
Classifications
Current U.S. Class: D 8/70