Chain

FIG. 1 is a front perspective view of a chain;

FIG. 2 is a front side view thereof;

FIG. 3 is a rear side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a bottom view thereof; and

FIG. 7 is a top view thereof.

FIG. 8 is a front perspective view of a chain link of the chain;

FIG. 9 is a front side view thereof;

FIG. 10 is a rear side view thereof;

FIG. 11 is a right side view thereof;

FIG. 12 is a left side view thereof;

FIG. 13 is a bottom view thereof;

FIG. 14 is a top view thereof;

FIG. 15 is a front perspective view of a second embodiment thereof;

FIG. 16 is a front side view thereof;

FIG. 17 is a rear side view thereof;

FIG. 18 is a right side view thereof;

FIG. 19 is a left side view thereof;

FIG. 20 is a bottom view thereof; and,

FIG. 21 is a top view thereof.

The broken lines in the drawings depict portions of the chain that form no part of the claimed design.