Blank for Packaging Box

FIG. 1 is a top plan view of a blank for packaging box showing our new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a front view thereof; and,

FIG. 7 is a perspective view thereof showing the blank for packaging box in a folded configuration.

The broken lines in the drawings indicate fold lines that are part of the claimed design.