The ornamental design for a fork lift, as shown and described.
FIG. 1 is a front, left-side perspective view of a fork lift showing our new design;
FIG. 2 is a rear, right-side perspective view thereof;
FIG. 3 is a top, rear, and left-side perspective view thereof;
FIG. 4 is a front elevation view thereof;
FIG. 5 is a rear elevation view thereof;
FIG. 6 is a left-side elevation view thereof;
FIG. 7 is a right-side elevation view thereof; and,
FIG. 8 is top plan view thereof.
The bottom view of the fork lift is not visible during ordinary use and forms no part of the claimed design. The broken lines shown in the drawings illustrate portions of the fork lift that form no part of the claimed design.