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 |
| 4419079 | Aircraft piloting aid system A piloting aid system for displaying symbols representative of determined characteristics of the flight of an aircraft and representative of its environment is disclosed. The symbols are displayed on the screen of a display unit which displays a symbol re... | 12/06/1983 |
| 4195300 | Device for simulating the locating signals of an ILS beacon The present invention relates to a device for simulating the locating signals of an I L S beacon, said device comprising on the one hand two chains in parallel respectively intended for generating sinusoidal modulation I L S signals, each comprising a dig... | 03/25/1980 |