US D374674 S
FIG. 1 is a perspective view of the telephone key expansion unit of the present invention;
FIG. 2 is a top view;
FIG. 3 is a front elevational view;
FIG. 4 is a right-side elevational view;
FIG. 5 is a left-side elevational view;
FIG. 6 is a rear elevational view; and,
FIG. 7 is a bottom view.
The broken lines showing of a telephone in FIG. 1 is for illustrative purposes only and forms no part of the claimed design.