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The ornamental design for a portable electric screw drive, as shown. |
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FIG. 1 is a front right side perspective view of a portable electric screw driver showing our new design;
FIG. 2 is a right side elevational view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a front elevational view thereof;
FIG. 5 is a rear elevational view thereof;
FIG. 6 is a left side elevational view thereof; and
FIG. 7 is a bottom plan view thereof.
Sasaki, Yuichiro, Adachi, Yoshiaki
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Apr 07 1989 | Hitachi Koki Company, Ltd. | (assignment on the face of the patent) | / | |||
| May 02 1989 | SASAKI, YUICHIRO | HITACHI KOKI COMPANY, LTD | ASSIGNMENT OF ASSIGNORS INTEREST | 005115 | /0375 | |
| May 02 1989 | ADACHI, YOSHIAKI | HITACHI KOKI COMPANY, LTD | ASSIGNMENT OF ASSIGNORS INTEREST | 005115 | /0375 |
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