The ornamental design for a grippingdevice, as shown and described.
FIG. 1 is a top perspective view of our gripping device;
FIG. 2 is a top view thereof, the bottom view being a mirror image thereof;
FIG. 3 is a front view thereof, the rear view being a mirror image thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a side perspective view thereof in which the gripping device is on the handle of tennis racket being held by a user, both shown in broken line;
FIG. 7 is a top view of a second embodiment of my gripping device having a single loop, the bottom view being a mirror image thereof;
FIG. 8 is a front view of the embodiment shown in FIG. 7, the rear view being a minor image thereof;
FIG. 9 is a left side view of the embodiment shown in FIGS. 7 and 8; and,
FIG. 10 is a right side view of the embodiment shown in FIGS. 7 through 10.
The racquet handle and hand shown in broken line in FIG. 6 illustrate manner of use and form no part of the claimed design.