Improvements in or relating to sound reproducing devices of the electro-dynamic or mo,申请号GB19320005150-传众专利搜索

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发明名称	Improvements in or relating to sound reproducing devices of the electro-dynamic or mo
摘要
申请公布号	GB384485(A)	申请公布日期	1932.12.08
申请号	GB19320005150	申请日期	1932.02.20
申请人	LEONARD WALTER MURKHAM;DOUGLAS TEMPLE BENNETT	发明人
分类号	H04R9/02;H04R9/06	主分类号	H04R9/02
代理机构		代理人
主权项
地址

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