The ornamental design for a golf putting practicedevice, as shown and described.
FIG. 1 is a left side elevational view of the golf putting practice device, the right side view being a mirror image of the left side view.
FIG. 2 is a front elevational view of the device shown in FIG. 1.
FIG. 3 is a rear elevational view of the device shown in FIG. 1.
FIG. 4 is a top plan view of the device shown in FIG. 1.
FIG. 5 is a bottom plan view of the device shown in FIG. 1.
FIG. 6 is a perspective view of the device shown in FIG. 1; and,
FIG. 7 is an enlarged cross-sectional view taken on line 7-7 of FIG. 1.
The broken line showing a golfer holding a puller, and striking a golf ball, in FIG. 6 is for illustrative purposes only and forms no part of the claimed design.