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The ornamental design for an electronic calculator, substantially as shown and described. |
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FIG. 1 is a top plan view of an electronic calculator showing our new design;
FIG. 2 is a right side elevational view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a left side elevational view thereof;
FIG. 6 is a rear elevational view thereof.
Porter, Paul W., Herr, Lewis H., Kovacs, John S.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Aug 26 1974 | Sperry Rand Corporation | (assignment on the face of the patent) | / |
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