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The ornamental design for a portable electric hammer drill, as shown and described. |
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;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a front perspective view thereof with a side handle.
Watanabe, Yoshihiko, Takagi, Toshiaki, Hasegawa, Hideaki, Matsunaga, Naoki
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
May 03 1993 | MATSUNAGA, NAOKI | Hitachi Koki Company Limited | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 006570 | /0870 | |
May 12 1993 | HASEGAWA, HIDEAKI | Hitachi Koki Company Limited | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 006570 | /0870 | |
May 12 1993 | WATANABE, YOSHIHIKO | Hitachi Koki Company Limited | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 006570 | /0870 | |
May 12 1993 | TAKAGI, TOSHIAKI | Hitachi Koki Company Limited | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 006570 | /0870 | |
May 18 1993 | Hitachi Koki Company Limited | (assignment on the face of the patent) | / |
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