Nuevo dispositivo captador y amplificador de señales acústicas de circulación,申请号ES19330000256U-传众专利搜索

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发明名称	Nuevo dispositivo captador y amplificador de señales acústicas de circulación
摘要
申请公布号	ES25633(U)	申请公布日期	1951.03.01
申请号	ES19330000256U	申请日期	1951.01.26
申请人	ALVAREZ ARAMBARRI, JUAN	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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