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No:4897862
Acoustic alarm detection system for telephone activation
No:4450436
Acoustic alarm repeater system
No:5028911
Acoustically responsive portable emergency light
No:7053765
Active security system
No:6864788
Actuator controller for selecting a communication language
No:6243010
Adaptive console for augmenting wireless capability in security systems
No:6445291
Adaptive console for augmenting wireless capability in security systems
No:4612535
Add-on alert system
No:7019634
Addressable location indicator apparatus and method
No:6573839
Aircraft catastrophic security system
No:7477145
Airport operations monitoring system
No:5748078
Alarm alerting method and apparatus
No:4271405
Alarm control system
No:4652859
Alarm reporting system
No:5521582
Alarm system
No:5999089
Alarm system
No:4520349
Alarm system activated by buzzers
No:7298254
Alarm system employing single transmission line
No:4777474
Alarm system for the hearing impaired
No:6441731
Alarm transmission apparatus
No:6914525
Alert system and method for geographic or natural disasters utilizing a telecommunications network
No:5278539
Alerting and warning system
No:7034680
Anchor/anchor chain monitoring device
No:6218938
Anti-burglar alarming door bell
No:7088231
Antitheft system
No:7224276
Antitheft system
No:6014076
Apparatus and method for achieving intrinsic safety using conventional sensors
No:4788527
Apparatus and method for device control using a two conductor power line
No:7075425
Apparatus and method for monitoring sewer system operation
No:6867688
Apparatus and method for providing weather and other alerts
No:6329904
Apparatus and method for providing weather and other alerts
No:6617964
Apparatus and method for providing weather and other alerts
No:6518875
Apparatus and method for sensing a condition of a vehicle tire
No:7391317
Apparatus and method for transmitting digital data over various communication media
No:5335267
Apparatus and method for transmitting text data directly to a facsimile machine
No:6861952
Apparatus and method for utilizing smoke alarms as nodes of a home network
No:4908602
Apparatus and method of testing a portable held button for emergency response system
No:5917775
Apparatus for detecting the discharge of a firearm and transmitting an alerting signal to a predetermined location
No:7477157
Apparatus for determining and/or monitoring a process variable of a medium
No:4450434
Apparatus for determining break locations in fencing
No:6828910
Apparatus for monitoring gas concentrations
No:6873255
Appliance communication system
No:4032909
Arrangement for testing an alarm system and method
No:5614886
Article removal alarm system for use with portable electronic device
No:5831526
Atmospheric hazard detector network
No:4417235
Audible alarm network
No:5736927
Audio listen and voice security system
No:5959528
Auto synchronous output module and system
No:6049272
Automated data transmission link to law enforcement and security personnel
No:5272465
Automatic alarm code converter

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