The ornamental design for a shoulderpositioningdevice, as shown and described.
FIG. 1 is a front perspective view of a shoulder positioning device to the present invention.
FIG. 2 is a left side view of the shoulder positioning device of FIG. 1.
FIG. 3 is a right side view of the shoulder positioning device of FIG. 1.
FIG. 4 is a front view of the shoulder positioning device of FIG. 1.
FIG. 5 is a rear view of the shoulder positioning device of FIG. 1.
FIG. 6 is a bottom view of the shoulder positioning device of FIG. 1; and,
FIG. 7 is a top view of the shoulder positioning device of FIG. 1.
The dashed lines illustrate environment that does not form a part of the present invention, and no claim is made to the material illustrated with dashed lines.
The shoulder positioning device is shown with symbolic breaks in its length. The appearance of any portion of the article between the break lines forms no part of the claimed design.