Portable electric hammer drill

Fushiya , et al. April 9, 1

Patent Grant D316020

U.S. patent number D316,020 [Application Number 07/192,897] was granted by the patent office on 1991-04-09 for portable electric hammer drill. This patent grant is currently assigned to Makita Electric Works, Ltd.. Invention is credited to Fusao Fushiya, Mikio Saito, Takashi Yamazaki.


United States Patent D316,020
Fushiya ,   et al. April 9, 1991

Portable electric hammer drill

Claims

The ornamental design for portable electric hammer drill, as shown.
Inventors: Fushiya; Fusao (Anjo, JP), Yamazaki; Takashi (Anjo, JP), Saito; Mikio (Anjo, JP)
Assignee: Makita Electric Works, Ltd. (JP)
Appl. No.: 07/192,897
Filed: May 12, 1988

Foreign Application Priority Data

Dec 22, 1987 [JP] 62-52251
Current U.S. Class: D8/61
Field of Search: ;D8/61,67,68,69,70 ;81/57.11,57.13,57.14,464,DIG.12 ;173/170 ;408/17,138,141,702
Foreign Patent Documents
2944275 May 1981 DE

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)..

Primary Examiner: Holtje; Nelson C.
Assistant Examiner: Watson; Gary D.
Attorney, Agent or Firm: Wolf, Greenfield & Sacks

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.

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