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The ornamental design for a calculator, as shown and described. |
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FIG. 1 is a top plan view of a calculator showing our new design;
FIG. 2 is a bottom plan view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a right side elevational view thereof; and
FIG. 6 is a left side elevational view thereof.
| Patent | Priority | Assignee | Title |
| D284201, | Dec 20 1983 | Sharp Corporation | Electronic calculator |
| D316557, | Jun 09 1988 | CASIO COMPUTER CO , LTD , A CORP OF JAPAN | Portable word processor |
| D652070, | Jul 15 2010 | Sharp Kabushiki Kaisha | Electronic calculator |
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| 231989, | |||
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Jan 14 1983 | Sharp Corporation | (assignment on the face of the patent) | / | |||
| Apr 25 1985 | KITAI, ISAO | SHARP KABUSHIKI KAISHA A CORP OF JAPAN | ASSIGNMENT OF ASSIGNORS INTEREST | 004397 | /0798 | |
| Apr 25 1985 | YAMADA, KAZUO | SHARP KABUSHIKI KAISHA A CORP OF JAPAN | ASSIGNMENT OF ASSIGNORS INTEREST | 004397 | /0798 |
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