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Electrical interconnection apparatus and technique
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Self-diagnostic ultrasonic intrusion detection system
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Combination intrusion detector system having correlated ultrasonic and microwave detection sub-systems
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Ceiling mountable passive infrared intrusion detection system
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Multimode programmable stand-alone access control system
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Stand-alone access control system clock control
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Smoke detector with remote alarm indication
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Temperature compensated alarm system
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Security system status reporting
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Variable sensitivity motion detector
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Security system with multiple levels of access
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Optical block in smoke detectors
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Local control apparatus for central station alarm system
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Optical system for ceiling mounted passive infrared sensor
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Optically-based access control system
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Integrated security system having a multiprogrammed controller
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Two-wire multi-zone alarm system
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Two-wire multi-zone alarm system
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AU8754682A
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Security system with multiple levels of access
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Local control apparatus for central station alarm system
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