Vorrichtung, insbesondere zum Regeln der Lautstärke bei Niederfrequenzverteilungssystemen.,申请号ATD132866-传众专利搜索

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发明名称	Vorrichtung, insbesondere zum Regeln der Lautstärke bei Niederfrequenzverteilungssystemen.
摘要
申请公布号	AT132866(B)	申请公布日期	1933.04.25
申请号	ATD132866	申请日期	1932.02.19
申请人	N. V. PHILIPS' GLOEILAMPENFABRIEKEN	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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