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			 The ornamental design for a writing instrument, as shown and described.  | 
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FIG. 1 is a right side elevational view of a writing instrument showing my new design;
FIG. 2 is a front elevational view;
FIG. 3 is a left side elevational view;
FIG. 4 is a rear elevational view;
FIG. 5 is a top plan view; and,
FIG. 6 is a bottom plan view thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc | 
| Jun 05 1992 | CHILLERI, GIORGIO | CHILLERI GIORGIO & FIGLI S N C | ASSIGNMENT OF ASSIGNORS INTEREST | 006201 | /0718 | |
| Jun 29 1992 | Chilleri Giorgio & Figli S.n.c. | (assignment on the face of the patent) | / | 
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