The ornamental design for a legliftingdevice, as shown and described.
FIG. 1 is a front elevational view of a leg lifting device in accordance with this invention.
FIG. 2 is a left side view of the leg lifting device of FIG. 1.
FIG. 3 is a right side view of the leg lifting device of FIG. 1.
FIG. 4 is a top view of the leg lifting device of FIG. 1; and,
FIG. 5 is a bottom view of the leg lifting device of FIG. 1.
In the drawings, the chain of the leg lifting device is shown passing through the handle and with symbolic broken lines in its length to indicate indeterminate length. The broken lines and the appearance of any portion of the leg lifting device between the break lines form no part of the claimed design.