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发明名称
Sentreringsanordning
摘要
申请公布号
NO20026135(A)
申请公布日期
2002.12.19
申请号
NO20020006135
申请日期
2002.12.19
申请人
DOWNHOLE PRODUCTS PLC
发明人
KIRK, IAN ALASTAIR;BARRON, WILLIAM;CLARK, ALISTAR BERTRAM
分类号
E21B17/10;(IPC1-7):E21B
主分类号
E21B17/10
代理机构
代理人
主权项
地址
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