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The ornamental design for a calculator, as shown and described. |
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FIG. 1 is a top, front and right side perspective view of a calculator showing my new design, with the stand in an open position;
FIG. 2 is a rear perspective view thereof;
FIG. 3 is a front elevational view, with the stand in closed position;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a left side elevational view thereof; and,
FIG. 8 is a right side elevational view thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Jun 15 1991 | CHEN, PAUL | DATEL ELECTROCRAFT CORP | ASSIGNMENT OF ASSIGNORS INTEREST | 005764 | /0648 | |
| Jul 01 1991 | Datel Electrocraft Corp. | (assignment on the face of the patent) | / |
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