Abdominal muscle training device

I claim, the ornamental design for an abdominal muscle training device, as shown and described.

FIG. 1 is a perspective view of the training device as viewed front the front left.

FIG. 2 is a perspective view of the training device as viewed from the rear right; and,

FIG. 3 is a perspective view of the training device as viewed from the rear.

Patent	Priority	Assignee	Title
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