The ornamental design for a wiperarm, as shown and described.
Cross reference is made to copending U.S. design patent application Ser. No. 29/689,452 entitled “Wiper Arm” by Stijn Truyens, which was filed on even date herewith.
FIG. 1 is a top perspective view of a wiper arm showing my new design;
FIG. 2 is a side perspective detail view of the wiper arm of FIG. 1;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a front elevational view thereof;
FIG. 6 is a rear elevational view thereof;
FIG. 7 is a left side elevational view thereof; and,
FIG. 8 is a right side elevational view thereof.
The broken lines shown in the drawings illustrate portions of the wiper arm that form no part of the claimed design. The dash-dot-dash lines depict the boundaries of the claimed design and form no part of the claimed design.