Kapazitives Mikrophon mit veraenderbarer Richtcharakteristik,申请号DE1949P034850-传众专利搜索

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发明名称	Kapazitives Mikrophon mit veraenderbarer Richtcharakteristik
摘要
申请公布号	DE927037(C)	申请公布日期	1955.04.28
申请号	DE1949P034850	申请日期	1949.02.23
申请人	NORDWESTDEUTSCHER RUNDFUNK	发明人	GROSSKOPF HERBERT
分类号	H04R1/40;H04R19/04	主分类号	H04R1/40
代理机构		代理人
主权项
地址

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