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发明名称
Sammenstilling for borerør
摘要
申请公布号
NO20005070(A)
申请公布日期
2000.10.30
申请号
NO20000005070
申请日期
2000.10.09
申请人
WELLTEC APS
发明人
HALLUNDBAEK, JOERGEN
分类号
E21B17/046;(IPC1-7):E21B
主分类号
E21B17/046
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代理人
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