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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 |
| 5941064 | Fuel injection device for ramjets for aircraft The present invention concerns a fuel injection device for ramjets for supersonic and/or hypersonic aircraft, said ramjet comprising a combustion supporting gas inlet and, downstream thereof, a combustion chamber and a nozzle adapted to channel gases leav... | 08/24/1999 |
| 5894722 | Variable geometry ramjet for aircraft A ramjet for supersonic and/or hypersonic aircraft, designed to operate over a wide range of speeds, includes an inlet for a combustion supporting gas; a fuel injection device; and a ramjet body. The ramjet body has a combustion chamber in which the combu... | 04/20/1999 |
