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The ornamental design for a power hammer drill, as shown. |
FIG. 1 is a front, top and right side perspective view of a power hammer drill 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 left side elevational view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a front elevational view thereof; and
FIG. 7 is a rear elevational view thereof.
Saito, Toshiaki, Hara, Shintaro
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Feb 19 1988 | SAITO, TOSHIAKI | Ryobi LTD | ASSIGNMENT OF ASSIGNORS INTEREST | 004846 | /0799 | |
Feb 19 1988 | HARA, SHINTARO | Ryobi LTD | ASSIGNMENT OF ASSIGNORS INTEREST | 004846 | /0799 | |
Mar 08 1988 | Ryobi Ltd. | (assignment on the face of the patent) | / |
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