DIFF Subgroup
G08B 13/18 Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
Introduced: September 1968
Full Title
Burglar, theft or intruder alarms > Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
IPC defines codes here since 1990.
Child Classifications
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- G08B 13/189 using passive radiation detection systems since 1990 +1 CPC IPC+CPC Available in IPC and CPC