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发明名称
APPARATUS FOR FEEDING A DRILLING MACHINE IN EXTENSION ROD DRILLING.
摘要
申请公布号
EP0533716(B1)
申请公布日期
1994.12.28
申请号
EP19910910426
申请日期
1991.06.11
申请人
TAMROCK OY
发明人
LAUNIEMI, MARKKU
分类号
E21B19/08;E21B7/02;E21B15/00;E21B19/086;E21B19/20;(IPC1-7):E21C11/00
主分类号
E21B19/08
代理机构
代理人
主权项
地址
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