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Publication of FR1002002ApublicationCriticalpatent/FR1002002A/fr
G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
G08B13/00—Burglar, theft or intruder alarms
G08B13/22—Electrical actuation
G08B13/26—Electrical actuation by proximity of an intruder causing variation in capacitance or inductance of a circuit
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FR1002002D1946-07-111946-07-11Dispositif de détection de corps vivants ou inertes passant ou stationnant dans uneenceinte déterminée
ExpiredFR1002002A
(fr)