The ornamental design for a palletcorner, as shown and described.
FIG. 1 is a perspective view of a pallet corner according to an exemplary embodiment;
FIG. 2 is an enlarged view taken from the marked section in FIG. 1;
FIG. 3 is a side view of FIG. 1;
FIG. 4 is an enlarged view taken from the marked section in FIG. 3;
FIG. 5 is an end view of FIG. 1; and,
FIG. 6 is an enlarged view taken from the marked section in FIG. 5.
The broken lines in the drawings depict portions of the pallet corner that form no part of the claimed design. The dot-dash broken lines depict enlarged views that form no part of the claimed design.