FIG. 1 is a top and right side perspective view of the portable radiotelephone showing our new design with a closed cover;

FIG. 2 is a top and right side perspective view of the portable radiotelephone showing our new design with an open cover;

FIG. 3 is a bottom side view of the portable radiotelephone;

FIG. 4 is a left side view of the portable radiotelephone; and,

FIG. 5 is an end view of the portable radiotelephone.

The broken line showings throughout the views are for illustrative purposes only and form no part of the claimed design. The portions of the inside cover not shown in FIG. 2 are substantially plain and unornamented. The portions of the end opposite FIG. 5 that have not been illustrated are substantially flat and unornamented.