Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5340108 | Apparatus for projecting and moving a spot of light in a scene projected on a screen and for controlling operation of a stepper motor used therewith | George E. Gerpheide, Sidney Lyle King | 1994-08-23 |
| 5333875 | Alignment system for golf ball driving and hitting mat | — | 1994-08-02 |
| 5277426 | Sports simulation system | George E. Gerpheide, Jack S. Kelliher | 1994-01-11 |