The ornamental design for a paperpunch, as shown and described.
FIG. 1 is a front perspective view of a paper punch showing the new design;
FIG. 2 is another front perspective view thereof;
FIG. 3 is a left side view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a front thereof;
FIG. 6 is a rear thereof;
FIG. 7 is a top view thereof;
FIG. 8 is a bottom view thereof; and,
FIG. 9 is front perspective view thereof with the paper chip compartment detached.
The broken lines showing a surface on the front view of FIG. 5 and a portion of the bottom view of FIG. 8 are included for the purpose of showing portions of the paper punch that form no part of the claimed design.