Hochvakuumdiffusionspumpe,申请号DE1952N005048-传众专利搜索

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发明名称	Hochvakuumdiffusionspumpe
摘要
申请公布号	DE923320(C)	申请公布日期	1955.02.10
申请号	DE1952N005048	申请日期	1952.02.05
申请人	NATIONAL RESEARCH CORPORATION	发明人	LAWRANCE RICHARD B. DR.;JUN. JOHN L. MIDDLETON
分类号	F04F9/00	主分类号	F04F9/00
代理机构		代理人
主权项
地址

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