Knock box

Description

FIG. 1 is a top, right, and front isometric view of an ornamental design for a knock box;

FIG. 2 is a top, rear, and left isometric view of the knock box of FIG. 1;

FIG. 3 is a left side elevational view of the knock box of FIG. 1;

FIG. 4 is a front elevational view of the knock box of FIG. 1;

FIG. 5 is a right side elevational view of the knock box of FIG. 1;

FIG. 6 is a rear elevational view of the knock box of FIG. 1;

FIG. 7 is a top plan view of the knock box of FIG. 1; and,

FIG. 8 is a bottom plan view of the knock box of FIG. 1.

The dashed broken lines show portions of the knock box that form no part of the claimed design.

Claims

The ornamental design for a knock box, as shown and described.