Patent classifications
G
PHYSICS
Load children
G08
SIGNALLING
Load children
G08B
SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
Load children
13/00
Burglar, theft or intruder alarms
Load children Filter patents View analytics View as hierarchy
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
Load children Filter patents View analytics View as hierarchy