Coupler Lock

FIG. 1 is a first perspective view of a coupler lock showing the new design;

FIG. 2 is a second perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a back elevation thereof;

FIG. 5 is a right-side elevation view thereof;

FIG. 6 is a left-side elevation view thereof; and

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is a third perspective view thereof in an assembled position; and,

FIG. 10 is a fourth perspective view thereof in an assembled position.