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经营范围
发明名称
A horizontal spool tree
摘要
申请公布号
GB0605020(D0)
申请公布日期
2006.04.19
申请号
GB20060005020
申请日期
2003.12.10
申请人
DRIL-QUIP INC
发明人
分类号
E21B33/035;E21B33/043
主分类号
E21B33/035
代理机构
代理人
主权项
地址
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