Improvements in or relating to alternating current supply systems for sound transmitting installations,申请号GB19320006354-传众专利搜索

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发明名称	Improvements in or relating to alternating current supply systems for sound transmitting installations
摘要
申请公布号	GB397910(A)	申请公布日期	1933.09.04
申请号	GB19320006354	申请日期	1932.03.02
申请人	ELECTROACUSTIC GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG	发明人
分类号	H04R3/00	主分类号	H04R3/00
代理机构		代理人
主权项
地址

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