Patent classifications
G
PHYSICS
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G08
SIGNALLING
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G08B
SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
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13/00
Burglar, theft or intruder alarms
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G08B13/18
Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
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G08B13/189
using passive radiation detection systems
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G08B13/194
using image scanning and comparing systems
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G08B13/196
using television cameras
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G08B13/19689
Remote control of cameras, e.g. remote orientation or image zooming control for a PTZ camera
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