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The ornamental design for an electronic calculator, as shown and described. |
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FIG. 1 is a front elevational view of the electronic calculator showing our new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a right side elevational view thereof; and
FIG. 7 is a right front perspective view thereof.
Sakaguchi, Hiroshi, Iida, Katsuhiro
| Patent | Priority | Assignee | Title |
| D257990, | Jul 03 1978 | Canon Kabushiki Kaisha | Combined desk top electronic calculator and clock |
| D263968, | Oct 18 1979 | Canon Kabushiki Kaisha | Desk-top electronic calculator |
| D275768, | Sep 18 1981 | Sharp Corporation | Electronic calculator |
| D276625, | Apr 21 1982 | Canon Kabushiki Kaisha | Desk-top electronic calculator |
| D284288, | Oct 20 1983 | Sharp Corporation | Printing calculator |
| D291325, | Nov 05 1984 | Sharp Kabushiki Kaisha | Electronic printing calculator |
| D294280, | May 30 1985 | Sharp Corporation | Printing calculator |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Jan 28 1987 | Sharp Corporation | (assignment on the face of the patent) | / | |||
| Mar 25 1987 | SAKAGUCHI, HIROSHI | SHARP KABUSHIKI KAISHA, OSAKA, JAPAN A CORP OF JAPAN | ASSIGNMENT OF ASSIGNORS INTEREST | 004697 | /0532 | |
| Mar 25 1987 | IIDA, KATSUHIRO | SHARP KABUSHIKI KAISHA, OSAKA, JAPAN A CORP OF JAPAN | ASSIGNMENT OF ASSIGNORS INTEREST | 004697 | /0532 |
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