Portable electric hammer drill
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Description
FIG. 1 is a front perspective view of the portable electric hammer drill;
FIG. 2 is a left side elevational view thereof;
FIG. 3 is a right side elevational view thereof;
FIG. 4 is a front elevational view thereof;
FIG. 5 is a rear 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
Other references
D280071 | August 13, 1985 | Oefinger |
D328556 | August 11, 1992 | Fushiya et al. |
D334876 | April 20, 1993 | Swetish |
D349029 | July 26, 1994 | Matsunaga et al. |
4378053 | March 29, 1983 | Simpson |
4930583 | June 5, 1990 | Fushiya et al. |
- Hammer-Drill illustration, HAC Magazine, Feb. 1971, p. 35. Skil.TM. Rotary Hammer Model 1750, illustration bottom right corner of p. 42, Popular Mechanics Magazine, May 1987. Bosch "Bulldog.TM." SDS Rotary Hammer Model 11213RK, Bosch Catalog 9000570300M, dated Sep. 1990, p. 13. Electro Pneumatic Rotary Hammer Model PHD 38, AEG Power Tool Catalog 014 420-3/APTC 0386.
Patent History
Patent number: D380132
Type: Grant
Filed: May 18, 1995
Date of Patent: Jun 24, 1997
Assignee: Hitachi Koki Company Limited (Tokyo)
Inventors: Naoki Matsunaga (Milan), Hideaki Hasegawa (Funabashi), Yoshihiko Watanabe (Ibaraki-ken), Toshiaki Takagi (Hitachinaka), Seiichi Kodato (Ibaraki-ken)
Primary Examiner: James Gandy
Assistant Examiner: Robert M. Spear
Law Firm: Lowe, Price, LeBlanc & Becker
Application Number: 0/39,111
Type: Grant
Filed: May 18, 1995
Date of Patent: Jun 24, 1997
Assignee: Hitachi Koki Company Limited (Tokyo)
Inventors: Naoki Matsunaga (Milan), Hideaki Hasegawa (Funabashi), Yoshihiko Watanabe (Ibaraki-ken), Toshiaki Takagi (Hitachinaka), Seiichi Kodato (Ibaraki-ken)
Primary Examiner: James Gandy
Assistant Examiner: Robert M. Spear
Law Firm: Lowe, Price, LeBlanc & Becker
Application Number: 0/39,111
Classifications
Current U.S. Class:
D 8/69
International Classification: 0801;
International Classification: 0801;