Portable electric hammer drill

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Description

FIG. 1 is a top, front and right side perspective view of portable electric hammer drill showing our new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a rear elevational view thereof; and

FIG. 7 is a front elevational view thereof.

Referenced Cited
Foreign Patent Documents
2944275 May 1981 DEX
Other references
  • Bosch Hammer Breakers Catalog, 5/1970, p. 3, rotary hammer #201 (catalog in D8 boxes). Skil Roto-set Hammers catalog, 5/1973, p. 6, top item, model No. 707, (catalog in D8 boxes). Red Head Philips anchors brochure, 10/1975, one page, model #747, far right (brochure in D8/69). Kango Electric Hammers catalog, 10/1985, model #422 (Catalog in D8 boxes).
Patent History
Patent number: D316020
Type: Grant
Filed: May 12, 1988
Date of Patent: Apr 9, 1991
Assignee: Makita Electric Works, Ltd.
Inventors: Fusao Fushiya (Anjo), Takashi Yamazaki (Anjo), Mikio Saito (Anjo)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Gary D. Watson
Law Firm: Wolf, Greenfield & Sacks
Application Number: 7/192,897
Classifications
Current U.S. Class: D 8/61