Mule

FIG. 1 is a right side view of a mule showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a perspective view thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a front view thereof;

FIG. 8 is a right side view of a second embodiment;

FIG. 9 is a top view thereof;

FIG. 10 is a left side view thereof;

FIG. 11 is a perspective view thereof;

FIG. 12 is a back view thereof;

FIG. 13 is a bottom view thereof;

FIG. 14 is a front view thereof;

FIG. 15 is a right side view of a third embodiment;

FIG. 16 is a top view thereof;

FIG. 17 is a left side view thereof;

FIG. 18 is a perspective view thereof;

FIG. 19 is a back view thereof;

FIG. 20 is a bottom view thereof; and,

FIG. 21 is a front view thereof.

The broken lines depict portions of the mule that form no part of the claimed design.