US D342487 S
FIG. 1 is a top, front and right side perspective view of an expansion unit for increasing the functions of an electronic computer showing my new design;
FIG. 2 is a front elevational view thereof with the cover for the circular control elements along the front shown closed;
FIG. 3 is a top plan view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a bottom plan view thereof; and,
FIG. 6 is a rear elevational view thereof.