Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5711715 | Method and apparatus for tournament play of coin operated games | Dock E. Ringo | 1998-01-27 |
| 4429876 | Pinball machine and play feature thereof | Ronald D. Halliburton, Robert J. Sava | 1984-02-07 |
| 4424970 | Panic post for pinball games | Ronald D. Halliburton, Robert J. Sava | 1984-01-10 |