US D347628 S
FIG. 1 is a top perspective view of a computer trackball showing our new design;
FIG. 2 is a side perspective view thereof;
FIG. 3 is a right side elevational view thereof on an enlarged scale;
FIG. 4 is a bottom plan view thereof; and,
FIG. 5 is a rear elevational view thereof.
The partial broken line drawings of a cord in FIG. 1 and the keyboard in FIG. 2 are for illustrative purposes only and form no part of the claimed design.