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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 |
| 7270354 | Locking device A locking device having an upper portion, a lower portion, and a locking arm prevents a closed door from being opened. The locking arm is pivotably mounted to the lower portion of the locking device and positioned in cavities of the upper portion and the lower porti... | 09/18/2007 |
| 6975693 | Approximating signal power and noise power in a system An electronic system with power approximation for circuit savings. Power approximation is provided by means for generating an absolute value of a real part of a signal, means for generating an absolute value of an imaginary part of the signal, means for generating a... | 12/13/2005 |
