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The ornamental design for a diamond file, as shown. |
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FIG. 1 is a top perspective view of a diamond file showing our new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a front elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a rear elevational view thereof; and
FIG. 7 is a left side elevational view thereof.
Kanamaru, Yutaka, Takeda, Yasuharu
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Sep 04 1987 | TAKEDA, YASUHARU | Ryobi LTD | ASSIGNMENT OF ASSIGNORS INTEREST | 005280 | /0693 | |
| Sep 04 1987 | KANAMARU, YUTAKA | Ryobi LTD | ASSIGNMENT OF ASSIGNORS INTEREST | 005280 | /0693 | |
| Oct 02 1987 | Ryoki Ltd. | (assignment on the face of the patent) | / |
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