Anordnung zur Erzeugung modulierter Tonfrequenzen,申请号DE1938S131499D-传众专利搜索

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法人/股东/高管

发明名称	Anordnung zur Erzeugung modulierter Tonfrequenzen
摘要
申请公布号	DE745537(C)	申请公布日期	1944.03.02
申请号	DE1938S131499D	申请日期	1938.03.31
申请人	SIEMENS & HALSKE AG.	发明人	WOLAK KURT
分类号	H04M19/02	主分类号	H04M19/02
代理机构		代理人
主权项
地址

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