Telescopic Power Supply Device

FIG. 1 is a front elevation view of a telescopic power supply device showing our new design;

FIG. 2 is a front and left perspective view thereof;

FIG. 3 is a perspective view thereof, shown in a use state;

FIG. 4 is a rear elevation view of that shown in FIG. 1 ;

FIG. 5 is an enlarged top plan view thereof;

FIG. 6 is an enlarged bottom plan view thereof;

FIG. 7 is a left side elevation view thereof; and,

FIG. 8 is a right side elevation view thereof.

The broken lines shown represent the portions of the telescopic power supply device that form no part of the claimed design.