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经营范围
发明名称
Purge system
摘要
申请公布号
GB0500813(D0)
申请公布日期
2005.02.23
申请号
GB20050000813
申请日期
2005.01.15
申请人
EXPRO NORTH SEA LIMITED
发明人
分类号
E21B33/076
主分类号
E21B33/076
代理机构
代理人
主权项
地址
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