Knuckle attachment device

Description

FIG. 1 is a perspective view of a knuckle attachment device having a top member and a bottom member;

FIG. 2 is another perspective view of the knuckle attachment device of FIG. 1;

FIG. 3 is another perspective view of the knuckle attachment device of FIG. 1;

FIG. 4 is a first side view of the knuckle attachment device of FIG. 1;

FIG. 5 is a second side view of the knuckle attachment device of FIG. 1;

FIG. 6 is a first end view of the knuckle attachment device of FIG. 1;

FIG. 7 is a second end view of the knuckle attachment device of FIG. 1;

FIG. 8 is a top view of the knuckle attachment device of FIG. 1;

FIG. 9 is a bottom view of the knuckle attachment device of FIG. 1;

FIG. 10 is a bottom view of the top member of the knuckle attachment device of FIG. 1; and,

FIG. 11 is a top view of the bottom member of the knuckle attachment device of FIG. 1.

The broken lines depict environmental matter and form no part of the claimed design.

Claims

An ornamental design for a knuckle attachment device, as shown and described.