Improvements in or relating to electrodynamic receivers of small size,申请号GB19370006284-传众专利搜索

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发明名称	Improvements in or relating to electrodynamic receivers of small size
摘要
申请公布号	GB491509(A)	申请公布日期	1938.09.05
申请号	GB19370006284	申请日期	1937.03.03
申请人	ERICH HAUSDORF	发明人
分类号	H04R9/10	主分类号	H04R9/10
代理机构		代理人
主权项
地址

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