The ornamental design for a washingmachine, as shown and described.
FIG. 1 is a front, right perspective of the washing machine showing my 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 plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The broken line showing of the top, bottom, sides and rear of the washing machine in FIGS. 1–7 are included for the purpose of illustrating environmental portions of the washing machine and forms no part of the claimed design.