The ornamental design for an embroiderymachine, as shown and described.
FIG. 1 is a perspective view of an embroidery machine;
FIG. 2 is a front view thereof;
FIG. 3 is a top view thereof;
FIG. 4 is a right-side view thereof;
FIG. 5 is a left-side view thereof;
FIG. 6 is a rear view thereof; and,
FIG. 7 is an enlarged cross sectional view thereof, the cross section taken along lines C-C in FIG. 4, and the enlargement defined by lines A-A in FIG. 4 and lines B-B in FIG. 3.
The broken lines depict environmental subject matter only and form no part of the claimed design.