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发明名称
Verktöy for gjennomhulling av et langsgående veggparti av et fôringsrör
摘要
申请公布号
NO20003369(A)
申请公布日期
2001.12.31
申请号
NO20000003369
申请日期
2000.06.28
申请人
PGS INTERVENTION AS
发明人
BAKKE, STIG
分类号
E21B7/18;E21B29/06;E21B43/112;(IPC1-7):E21B43/112;E21B43/114
主分类号
E21B7/18
代理机构
代理人
主权项
地址
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