FIG. 1 is a perspective view of a can opener showing my new design;
FIG. 2 is a left side view thereof, the right side view being a mirror image thereof;
FIG. 3 is front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a top view thereof; and,
FIG. 6 is a bottom view thereof.
The broken lines depict environmental subject matter only and form no part of the claimed design.