Vacuum machine

FIG. 1 is a perspective view of a vacuum machine showing my new design;

FIG. 2 is another perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 9 is an enlarged view of portion 9 shown in FIG. 1 .

The broken lines in the drawings depict portions of the vacuum machine that form no part of the claimed design. The broken line encircling the enlargement forms no part of the claimed design.