US D283515 S
FIG. 1 is a top plan view of a combined ruler and solar cell calculator, showing my new design;
FIG. 2 is a bottom plan view thereof;
FIG. 3 is a front elevational view thereof, the rear being substantially a mirror image thereto;
FIG. 4 is a right end elevational view thereof;
FIG. 5 is a left end elevational view thereof.