Improvements in or relating to electrical apparatus for the reproduction of sounds by means of at least two loud-speakers,申请号GB19370002717-传众专利搜索

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发明名称	Improvements in or relating to electrical apparatus for the reproduction of sounds by means of at least two loud-speakers
摘要
申请公布号	GB486801(A)	申请公布日期	1938.06.10
申请号	GB19370002717	申请日期	1937.01.29
申请人	JOSEPH FUERSTENZELLER	发明人
分类号	H04R1/26;H04R9/02	主分类号	H04R1/26
代理机构		代理人
主权项
地址

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