FR344766A - Système électro-magnétique plus particulièrement applicable comme avertisseur ou protecteur fonctionnant en cas de tentatives d'effraction
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Système électro-magnétique plus particulièrement applicable comme avertisseur ou protecteur fonctionnant en cas de tentatives d'effraction
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JEAN MARIE CAPDAZE
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JEAN MARIE CAPDAZE
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Publication of FR344766ApublicationCriticalpatent/FR344766A/fr
G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
G08B13/00—Burglar, theft or intruder alarms
G08B13/22—Electrical actuation
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General Physics & Mathematics
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FR344766D1904-07-121904-07-12Système électro-magnétique plus particulièrement applicable comme avertisseur ou protecteur fonctionnant en cas de tentatives d'effraction
ExpiredFR344766A
(fr)