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The ornamental design for a letter opener, as shown. |
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FIG. 1 is a front elevational view of a letter opener showing my new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a left edge view thereof;
FIG. 4 is a right edge view thereof;
FIG. 5 is a bottom view thereof; and,
FIG. 6 is a top plan view thereof;
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Jul 16 1990 | SCHAPIRO, SAMUEL H JR | BLUE RIBBON PEN & PENCIL CO INC | ASSIGNMENT OF ASSIGNORS INTEREST | 005382 | /0654 | |
| Jul 23 1990 | Blue Ribbon Pen & Pencil Co., Inc. | (assignment on the face of the patent) | / |
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