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Penn Jillette of Penn and Teller fame has patented a "Hydro-Therapeutic Stimulator", which uses a hot tub for stimulation.
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| Number | Title | Issue Date |
| 7267586 | Lever powered watercraft Embodiments of the disclosure include a flotation device or watercraft propelled through the water using a lever powered propulsion system. The lever powered propulsion system includes human powered actuating levers operably connected to a reciprocating propulsion d... | 09/11/2007 |
| 6939187 | Personal water transport assembly A personal water transport assembly for allowing a user to walk and move easily upon water. The personal water transport assembly includes a floatation assembly including one or more elongate hollow floatation members having top, side, and bottom walls, and also hav... | 09/06/2005 |
| 5669793 | Apparatus and method for propelling a water vehicle There is provided an apparatus for propelling a water vehicle. A plurality of rotatable paddles are mounted on a pair of spaced apart slidable slide mechanism. The slide mechanism are moveable within a pair of channels formed on opposing sides of a frame.... | 09/23/1997 |
| 4578038 | Elongated propelling means for manually moving a sailing craft over the water surface A thrust device for manually advancing a water craft over a water surface includes a stick-like grip forming part of a stick carrying a thrust apparatus made of a flexible, substantially circular foil provided with radial stiffening members attached at eq... | 03/25/1986 |
| 3970031 | Floating oars This invention pertains to a floating oar device which includes a pair of floatation pads attached to a handle; each floatation pad provides a flap hinged thereto which close during each rearward power stroke and open during the retrieve phase of each str... | 07/20/1976 |
