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发明名称
Fremgangsmåte ved boring
摘要
申请公布号
NO312307(B1)
申请公布日期
2002.04.22
申请号
NO20000002874
申请日期
2000.06.06
申请人
MOE, PER H.
发明人
MOE, PER H.
分类号
E21B;E21B7/00;E21B7/28;(IPC1-7):E21B7/28
主分类号
E21B
代理机构
代理人
主权项
地址
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