| Patents for A63G 3 - Water roundabouts, e.g. freely floating (305) | |
|---|---|
| 11/1981 | |
| 11/10/1981 | US4299171 Demountable flume amusement ride |
| 04/1979 | |
| 04/17/1979 | US4149469 Log braking and stabilizing system for log flume ride |
| 12/1977 | |
| 12/20/1977 | US4063517 Rapid transit system |
| 02/1976 | |
| 02/03/1976 | US3935819 Mass transportation |
| 01/1976 | |
| 01/06/1976 | US3930450 Boat ride for amusement park |