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发明名称
摘要
申请公布号	FR2303938(B1)	申请公布日期	1982.03.05
申请号	FR19750008324	申请日期	1975.03.14
申请人	TREFILUNION	发明人
分类号	E21D11/15;E21D19/04;(IPC1-7):E21D11/15	主分类号	E21D11/15
代理机构		代理人
主权项
地址

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