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Magician Harry Houdini patented a "Diver's Suit" enabling the wearer to "quickly divest himself of the suit while being submerged and to safely escape and reach the surface of the water."
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| Number | Title | Issue Date |
| 6874760 | Angled-slit bite-valve Bite-valves are synonymous with personal hydration systems. Their action is to provide regulation of fluid that is drawn from the hydration reservoir by supplying a vacuum or by sucking like on a straw. Bite valves are placed in line and usually at the end of the li... | 04/05/2005 |
