Verfahren zur Verminderung des Nadelgeraeusches bei der Aufnahme und Wiedergabe von Schallaufzeichnungen,申请号DE1937SC12328D-传众专利搜索

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发明名称	Verfahren zur Verminderung des Nadelgeraeusches bei der Aufnahme und Wiedergabe von Schallaufzeichnungen
摘要
申请公布号	DE688480(C)	申请公布日期	1940.02.21
申请号	DE1937SC12328D	申请日期	1937.03.12
申请人	DR.-ING. KARL-OTTO SCHMIDT	发明人	SCHMIDT DR.-ING. KARL-OTTO
分类号	G11B3/04	主分类号	G11B3/04
代理机构		代理人
主权项
地址

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