| 5162780 | Trackball for data entry and control with optimized ball height | November, 1992 | Sollyell | 345/167 |
FIG. 1 is a front and right side perspective view in elevation of a computer mouse showing the new design of the present invention;
FIG. 2 is a top plan view thereof;
FIG. 3 is a right side elevational view thereof;
FIG. 4 is a front elevational view thereof;
FIG. 5 is a rear elevational view thereof;
FIG. 6 is a left side elevational view thereof; and,
FIG. 7 is a bottom plan view thereof.