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| Number | Title | Issue Date |
| 7861658 | Human powered rail bike Disclosed herein is a human powered rail bike. The rail bike includes a chassis having a predetermined shape. Rail wheels comprising a pair of front wheels and rear wheels, roll along two rails of the track which are arranged side by side. A plurality of seats is mo... | 01/04/2011 |
| 6220172 | Camera track system and controls therefor A camera track system comprising a track (100), a camera mounted on a movable truck (102) driven by drive means (104), control means (110) for controlling movement of the truck (102) along the track (100), in which commands between the control means (110)... | 04/24/2001 |
| 4548136 | Track-traveling four-wheel vehicle A track-traveling four-wheel vehicle is arranged such that pedalling power of a passenger is transmitted to rear wheels as drive wheels through a chain, and the rear wheels and front wheels as driven wheels roll along two rails. The vehicle has: frames co... | 10/22/1985 |
| 4146245 | Self-propelled vehicles A self-propelled cycle-type vehicle comprises a drive wheel rotatably supported by the vehicle frame and coupled to the vehicle foot pedals; a planetary wheel of larger diameter than the drive wheel and rotatably supported by the frame around the drive wh... | 03/27/1979 |
