Elektrodynamischer Trichterlautsprecher mit als Kolben schwingender Membran,申请号DE1931S100375D-传众专利搜索

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发明名称	Elektrodynamischer Trichterlautsprecher mit als Kolben schwingender Membran
摘要
申请公布号	DE616191(C)	申请公布日期	1935.07.22
申请号	DE1931S100375D	申请日期	1931.08.12
申请人	TELEFUNKEN GESELLSCHAFT FUER DRAHTLOSE TELEGRAPHIE M.B.H.;TELEFUNKEN GESELLSCHAFT FUER DRAHTLOSE TELEGRAPHIE M.B.H.	发明人
分类号	H04R7/22;H04R9/06	主分类号	H04R7/22
代理机构		代理人
主权项
地址

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