Halterung fuer Lautsprecher-Konusmembranen,申请号DENDATM104065D-传众专利搜索

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发明名称	Halterung fuer Lautsprecher-Konusmembranen
摘要
申请公布号	DE540679(C)	申请公布日期	1931.12.28
申请号	DENDATM104065D	申请日期
申请人	MARCONI'S WIRELESS TELEGRAPH CO. LTD.	发明人
分类号	H04R9/04	主分类号	H04R9/04
代理机构		代理人
主权项
地址

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