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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 |
| 6244863 | Dental color comparator scope A dental comparator scope for comparing a dental shade to a natural tooth. The scope comprises an L-shape body which includes a sight applying to the tooth and a handle for holding the scope, and a cartridge with a plurality of dental shades in it. Two id... | 06/12/2001 |
| 4904605 | Method and apparatus for residential water test kit The present invention relates, generally, to an apparatus and method for water testing and, more particularly, to a simple dipstick type method for use in comparison with a color chart and suggested courses of action to correct deficiencies in water quali... | 02/27/1990 |
| 4797256 | Registration device for blood test strips A ring-shaped registration device for receiving and holding an activated test strip having a reagent area adapted to receive a blood sample. The registration device is slidably received on the outer peripheral surface of a cylindrical vial on which markin... | 01/10/1989 |
