The ornamental design for a combination electric can opener, clock/timer, and knife sharpener, as shown.
FIG. 1 is a perspective view from, the front, top and right side of a
combination electric can opener, clock/timer and knife sharpener showing
my new design, the broken line showing of the digital time 1:54 is for
illustrative purposes only and forms no parts of the claimed design;
FIG. 2 is a perspective view thereof from the rear, bottom, and left side;
and,
FIG. 3 is a fragmentary perspective view of the knife sharpener from the
top, rear, and left side.