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G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
G08B15/00—Identifying, scaring or incapacitating burglars, thieves or intruders, e.g. by explosives
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FR690316D1930-02-201930-02-20Dispositif pour la mise en activité d'un signal automatique par irruption d'un indésirable dans les magasins et analogues
ExpiredFR690316A
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