The ornamental design for a light stringbracketpole, as shown and described.
FIG. 1 is a front perspective view of a light string bracket pole, showing my design.
FIG. 2 is a front elevation view thereof.
FIG. 3 is a rear elevation view thereof.
FIG. 4 is a left side elevation thereof.
FIG. 5 is a right side elevation thereof.
FIG. 6 is a top plan view thereof.
FIG. 7 is a bottom plan view thereof.
FIG. 8 is an enlarged view of an area labeled 8 in FIG. 1; and,
FIG. 9 is an enlarged view of an area labeled 9 in FIG. 1.
The evenly spaced broken lines depict environmental structure and the dot-dash broken lines illustrate the enlargements of the design. The broken lines form no part of the claimed design.