Kondensatormikrofon oder -telefon mit festem Dielektrikum,申请号DE1938S131819D-传众专利搜索

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发明名称	Kondensatormikrofon oder -telefon mit festem Dielektrikum
摘要
申请公布号	DE724170(C)	申请公布日期	1942.08.19
申请号	DE1938S131819D	申请日期	1938.04.26
申请人	SIEMENS & HALSKE AG.	发明人	JANOVSKY DR.-ING. WILHELM;BAUER HEINRICH
分类号	H04R19/00	主分类号	H04R19/00
代理机构		代理人
主权项
地址

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