Portable electric screw driver


FIG. 1 is a front and right side perspective view of a portable electric screw driver showing our new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a left side elevational view thereof; and

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D298009 October 11, 1988 Svetlik
D310160 August 28, 1990 Patel
D310470 September 11, 1990 Tohdoh
3866493 February 1975 Ringerud
3935909 February 3, 1976 Mabuchi et al.
4030383 June 21, 1977 Wagner
4708210 November 24, 1987 Rahm
Foreign Patent Documents
625918 May 1984 JPX
Patent History
Patent number: D323274
Type: Grant
Filed: Apr 7, 1989
Date of Patent: Jan 21, 1992
Assignee: Hitachi Koki Company, Ltd.
Inventors: Yuichiro Sasaki (Katsuta), Yoshiaki Adachi (Katsuta)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: J. H. Musgrove
Law Firm: Lowe, Price, LeBlanc & Becker
Application Number: 7/334,947
Current U.S. Class: D 8/61