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The ornamental design for an electronic calculator, as shown. |
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FIG. 1 is a top plan view of a electronic calculator showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side elevational view thereof,
FIG. 5 is a right side elevational view thereof, and
FIG. 6 is a bottom plan view thereof.
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