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发明名称
OILFIELD ELEVATOR
摘要
申请公布号
CA2616312(A1)
申请公布日期
2008.06.05
申请号
CA20072616312
申请日期
2007.12.05
申请人
TESCO CORPORATION
发明人
HOLLIN, MICHAEL ANDREW
分类号
E21B19/06
主分类号
E21B19/06
代理机构
代理人
主权项
地址
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