G
PHYSICS
Load children
G08
SIGNALLING
Load children
G08B
SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
Load children
G08B13/00
Burglar, theft or intruder alarms
Load children
G08B13/22
Electrical actuation
Load children Filter patents View as hierarchy
G08B13/24
by interference with electromagnetic field distribution
Load children Filter patents View as hierarchy
G08B13/2402
Electronic Article Surveillance [EAS], i.e. systems using tags for detecting removal of a tagged item from a secure area, e.g. tags for detecting shoplifting
Load children Filter patents View as hierarchy
G08B13/2451
Specific applications combined with EAS
Load children Filter patents View as hierarchy
G08B13/2454
Checking of authorisation of a person accessing tagged items in an EAS system
Filter patents View as hierarchy