The ornamental design for a bracket for wallhanging a display device, as shown and described.
FIG. 1 is a top front perspective view of a bracket for wall hanging a display device showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a perspective reference view of a separate gap adjustment bracket attached to the present bracket.
The broken lines illustrating portions of the bracket for wall hanging a display device are for environmental purposes only and form no part of the claimed design.