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The ornamental design for a writing instrument, as shown. |
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FIG. 1 is a front elevational view of a writing instrument showing my new design;
FIG. 2 is a right side elevational view thereof;
FIG. 3 is a left side elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a bottom plan view thereof; and
FIG. 6 is a top plan view thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Nov 28 1979 | Interdica S.A. | (assignment on the face of the patent) | / |
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