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发明名称
Anordning ved fingerbord for utløsbar lõsbar fastholdelse av rør, særlig borerørlengder
摘要
申请公布号
NO20002017(D0)
申请公布日期
2000.04.17
申请号
NO20000002017
申请日期
2000.04.17
申请人
HITEC ASA
发明人
MOE, MAGNE
分类号
E21B19/14;(IPC1-7):E21B
主分类号
E21B19/14
代理机构
代理人
主权项
地址
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