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发明名称
Pakningsanordning til tetting av hull i veggen av et rör i en avviksbrönn, en forankringsinnretning for pakningsanordningen og et verktöy til montering av pakningsanordningen og forankringsinnretningen
摘要
申请公布号
NO930338(A)
申请公布日期
1994.08.02
申请号
NO19930000338
申请日期
1993.02.01
申请人
NILSEN, MAGNE PETTER;EIANE, DAG JOHAN
发明人
NILSEN, MAGNE PETTER;EIANE, DAG JOHAN
分类号
E21B23/06;E21B29/10;E21B33/124;E21B33/128;E21B33/1295;(IPC1-7):E21B33/124
主分类号
E21B23/06
代理机构
代理人
主权项
地址
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