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发明名称
摘要
申请公布号	FR2139842(A1)	申请公布日期	1973.01.12
申请号	FR19720014401	申请日期	1972.04.24
申请人	DEUTSCHE EDELSTAHLWERKE	发明人
分类号	C01B31/30;(IPC1-7):C01B31/00;C22C29/00;F27B9/00	主分类号	C01B31/30
代理机构		代理人
主权项
地址

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