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发明名称
DRILL FLUID COLLECTING DEVICE
摘要
申请公布号
CA2630875(A1)
申请公布日期
2007.06.07
申请号
CA20062630875
申请日期
2006.11.29
申请人
V-TECH AS
发明人
HALSE, HELGE-RUBEN
分类号
E21B21/01;E21B;E21B19/16
主分类号
E21B21/01
代理机构
代理人
主权项
地址
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