Verfahren zur Messung der Schallstaerke,申请号DE1928S088353D-传众专利搜索

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发明名称	Verfahren zur Messung der Schallstaerke
摘要
申请公布号	DE525127(C)	申请公布日期	1931.05.21
申请号	DE1928S088353D	申请日期	1928.11.10
申请人	SIEMENS & HALSKE AKT.-GES.	发明人	DOERING DIPL.-ING. ERNST
分类号	G01H3/00	主分类号	G01H3/00
代理机构		代理人
主权项
地址

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