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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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| Application No. | Application Title | Issue Date |
| 20100112963 | Wireless intercommunicative alarm doorbell A wireless intercommunicative alarm doorbell comprising an outdoor bell and an indoor bell; the outdoor bell comprises an outdoor bell casing, an outdoor bell power supply, an outdoor bell loudspeaker, an outdoor bell microphone, an outdoor bell talk button, an outdoor ... | 05/06/2010 |
| 20100066558 | PERSONAL SECURITY DEVICE A security device with a locator module and an identifier module sends an alert signal to warn others of an emergency situation. The security device uses a wireless transceiver to transmit the alert signal and a monitoring center. Location information updates and an aud... | 03/18/2010 |
| 20090243816 | MONITOR WITH REMINDER SOUND A monitor with reminder sounds is disclosed. The device includes at least a monitor, at least a touch button and an audio player. The touch button is disposed on the monitor for adjusting status of the monitor. The audio player is also arranged on the monitor and is con... | 10/01/2009 |
| 20090137207 | Wireless bell device and operating method thereof The invention provides a wireless bell device and an operating method thereof. The wireless bell device comprises a controlling module and a transmitting module. The controlling module has a button. When the button is pressed, a controlling signal is transmitted by the ... | 05/28/2009 |
| 20070279198 | ADJUSTABLE DOOR CHIME WITH INTERCHANGEABLE PARTS The present invention is a door chime. The door chime has a decorative cover connected to a sound module including sound controls. The decorative cover is shiftable relative to the sound module from a first position in which the decorative chime will be displayed during... | 12/06/2007 |
| 20060017547 | System and method for managing services and facilities in a multi-unit building The application discloses various methods and systems that utilize infrared communication to enhance and manage the security and convenience of occupants and the operation and efficiency of the staff of a multi-unit building. ... | 01/26/2006 |
