The ornamental design for a ladderstabilizer, as shown and described.
This application claims priority to and the benefit of U.S. application Ser. No. 15/297,389, filed Oct. 19, 2016. The entirety of such application is incorporated herein by reference.
FIG. 1 is a perspective view of a ladder stabilizer showing my new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is an enlarged top plan view thereof; and,
FIG. 7 is an enlarged bottom plan view thereof.
The broken lines shown in the figures are included for the purpose of illustrating portions of the ladder stabilizer and form no part of the claimed designed.