| Number | Name | Date | Kind |
|---|---|---|---|
| 3981087 | Sachs | Sep 1976 | |
| 4593904 | Graves | Jun 1986 | |
| 5180309 | Egnor | Jan 1993 | |
| 5456607 | Antoniak | Oct 1995 | |
| 5679075 | Forrest et al. | Oct 1997 | |
| 5885087 | Thomas | Mar 1999 | |
| 5915971 | Ramsay et al. | Jun 1999 |
| Entry |
|---|
| “GSS-III Game Show System,” product brochure by Creative Imagineering, Fort Lauderdale, FL., (1994). |