The ornamental design for a housingpanel for a portable cellular radio telephone or similar article, as shown and described.
FIG. 1 is a front, top and right side perspective view of a housing panel
for a portable cellular radio telephone or similar article showing our new
design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a left side elevational view thereof.
The broken line showing of a casing outline and antenna is for illustrative
purposes only and forms no part of the claimed design.