FIG. 1 is a perspective view of a first embodiment of the base unit.
FIG. 2 is a front elevation view of the base unit of FIG. 1.
FIG. 3 is a back elevation view of the base unit of FIG. 1.
FIG. 4 is a left side elevation view of the base unit of FIG. 1.
FIG. 5 is a right side elevation view of the base unit of FIG. 1.
FIG. 6 is a top plan view of the base unit of FIG. 1.
FIG. 7 is a bottom plan view of the base unit of FIG. 1.
FIG. 8 is a perspective view of a second embodiment of the base unit.
FIG. 9 is a front elevation view of the base unit of FIG. 8.
FIG. 10 is a back elevation view of the base unit of FIG. 8.
FIG. 11 is a left side elevation view of the base unit of FIG. 8.
FIG. 12 is a right side elevation view of the base unit of FIG. 8.
FIG. 13 is a top plan view of the base unit of FIG. 8; and,
FIG. 14 is a bottom plan view of the base unit of FIG. 8.