Vacuum cleaner

FIG. 1 is a front perspective view of a vacuum cleaner showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left-side view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a rear perspective view thereof; and,

FIG. 9 is enlarged view of encircled portion in FIG. 3 .

The details shown in broken lines form no part of the claimed design. The dot-dash broken lines in FIG. 3 indicate the enlarged portion in FIG. 9 .