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| Number | Title | Issue Date |
| 7211983 | Amphibious off-road vehicle The invention concerns an off-road vehicle, in particular of the amphibious type, having a left wheel-train (6, 7, 8) and a right wheel-train, arranged to propel the vehicle on both land and water, propulsion resources (10) to drive the said wheel trai... | 05/01/2007 |
| 6666735 | Jet drive assist for off-road vehicle with flotation A vehicular drive apparatus comprises in combination, an off-road vehicle including an internal combustion engine drive system and a liquid propulsion jet drive system jointly functional in a single engine case of the off-road vehicle for enabling forward... | 12/23/2003 |
| 4092945 | Float apparatus for bicycle A float apparatus for attachment to a conventional bicycle comprising a pair of frame members, each having an elongated pontoon extending from the front of the bicycle to the rear of the bicycle mounted thereon. Each frame member has a support rod extendi... | 06/06/1978 |
