Portable electric screw driver


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

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a top plan view thereof; and

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D118854 February 1940 Forss
D243652 March 15, 1977 Zurwelle et al.
D243742 March 22, 1977 House et al.
2479750 August 1949 Lewandowski
Foreign Patent Documents
53-7064 July 1978 JPX
56-0126 September 1981 JPX
57-5419 March 1983 JPX
59-6321 March 1983 JPX
Other references
  • Rockwell Professional Power Tools Catalog, p. 61 "D" Handle Screwdriver 7572. Catalogue printed by Kress-Electrik GmbH+Co., 1987.
Patent History
Patent number: D301300
Type: Grant
Filed: Dec 21, 1987
Date of Patent: May 30, 1989
Assignee: Hitachi Koki Company, Ltd.
Inventors: Yuichiro Sasaki (Katsuta), Toshiaki Uchida (Katsuta)
Primary Examiner: Bruce W. Dunkins
Assistant Examiner: Clare E. Heflin
Law Firm: Lowe, Price, LeBlanc, Becker & Shur
Application Number: 7/136,485
Current U.S. Class: D 8/68; D 8/69