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The ornamental design for an electronic calculator, as shown and described. |
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FIG. 1 is a top plan view of an electronic calculator showing my 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 |
| D652070, | Jul 15 2010 | Sharp Kabushiki Kaisha | Electronic calculator |
| Patent | Priority | Assignee | Title |
| 231989, | |||
| D271767, | Feb 24 1981 | Sharp Corporation | Electronic keyboard |
| D275009, | Sep 19 1981 | Tokyo Shibaura Denki Kabushiki Kaisha | Keyboard-equipped arithmetic operation control machine for electronic computers |
| D276230, | Mar 03 1982 | Sharp Corporation | Computer keyboard |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Dec 23 1982 | SAWADA, MASAJI | SHARP KABUSHIKI KAISHA SHARP CORPORATION A CORP OF JAPAN | ASSIGNMENT OF ASSIGNORS INTEREST | 004084 | /0139 | |
| Jan 05 1983 | Sharp Corporation | (assignment on the face of the patent) | / |
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