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| January 6, 2004 |
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| April 12, 2004 |
| 7042350 | Security messaging system
| December 31, 2003 |
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| February 5, 2004 |
| 7031436 | Security telephone
| April 9, 2003 |
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| September 22, 2003 |
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| August 7, 2003 |
| 7019770 | Videophone system for scrutiny monitoring with computer control
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| June 9, 2003 |
| 7012994 | Emergency calling via a cable modem
| September 3, 2004 |
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| March 23, 2001 |
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| November 16, 2001 |
| 6973166 | Automated parallel and redundant subscriber contact and event notification system
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| 6956931 | Location evaluation for callers that place emergency telephone calls over packet networks
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| November 13, 2003 |
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| December 19, 2003 |
| 6934365 | Emergency call device and method for controlling emergency call
| November 5, 2003 |
| 6920204 | Thundercall, the call before the storm
| March 13, 2001 |
| 6895082 | Alarm system using local data channel
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| 6792081 | Emergency notification system
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| March 23, 2001 |
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