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发明名称	BOREHODE MED DYSER
摘要
申请公布号	NO920341(D0)	申请公布日期	1992.01.24
申请号	NO19920000341	申请日期	1992.01.24
申请人	KSK GUIDED MICROTUNNELING TECH	发明人	DAHN ROLF
分类号	E21D9/10;E21B7/06;E21B7/18;E21B10/60;E21C45/00;(IPC1-7):E21B/	主分类号	E21D9/10
代理机构		代理人
主权项
地址

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