The ornamental design for a licenseplatereadercabinet, as shown and described.
FIG. 1 is a front elevational view of a license plate reader cabinet showing my new design;
FIG. 2 is a right side elevational view of the license plate reader cabinet of FIG. 1, the undisclosed left side is a mirror image of the right side thereof;
FIG. 3 is a top plan view of the license plate reader cabinet of FIG. 1; and,
FIG. 4 is a front, top and right side perspective view of the license plate reader cabinet of FIG. 1.