Coffee machine

FIG. 1 is a front perspective view of the coffee machine;

FIG. 2 is another front perspective view thereof;

FIG. 3 is a bottom perspective view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is a top view thereof; and,

FIG. 9 is a bottom view thereof.

The broken lines shown in the figures show features of the coffee machine that form no part of the claimed design.