The ornamental design for a puttergrip, as shown and described.
FIG. 1 is a front elevational view of the putter grip showing my new design, the right side, left side and rear elevational views being identical;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a front, right side perspective view thereof;
FIG. 5 is a front elevational view of a second embodiment of the putter grip disclosed in FIG. 1, the right side, left side and rear elevational views being identical;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a front, right side perspective view thereof.
The club portion shown in dashed lines in FIGS. 4 and 8 is included for the purpose of illustrating environment and forms no part of the claimed design.