Détecteurs d'infra-sons et avertisseurs et leur application à la détection d'ouvertures de portes et fenêtres,申请号FRD55579-传众专利搜索

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发明名称	Détecteurs d'infra-sons et avertisseurs et leur application à la détection d'ouvertures de portes et fenêtres
摘要
申请公布号	FR55579(E)	申请公布日期	1952.09.01
申请号	FRD55579	申请日期	1942.09.10
申请人		发明人	ESCLANGON ERNEST
分类号	G08B13/16;G08B19/00	主分类号	G08B13/16
代理机构		代理人
主权项
地址

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