The ornamental design for a washingmachine, as shown and described.
1. Washing machine
1.1 : Perspective
1.2 : Front
1.3 : Back
1.4 : Left
1.5 : Top
1.6 : Bottom
1.7 : Reference
1.8 : Reference
The broken lines depict portions of the washing machine that form no part of the claimed design; the dash-dot broken lines define the boundary of the claimed design and form no part thereof; reproduction 1.1 is a front perspective view of the washing machine; reproduction 1.2 is a front view thereof; reproduction 1.3 is a rear view thereof; reproduction 1.4 is a left side view thereof where the right side view is a mirror image; reproduction 1.5 is a top plan view thereof; reproduction 1.6 is a bottom plan view thereof; reproduction 1.7 is reference enlarged view thereof showing the state of the control panel part when the display part is not operated; reproduction 1.8 is reference enlarged view thereof showing the state of the control panel part when the display part is operated; reproductions 1.7 and 1.8 form no part of the claimed design.