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发明名称
Self-cleaning sand screen
摘要
申请公布号
US3361203(A)
申请公布日期
1968.01.02
申请号
US19650501805
申请日期
1965.10.22
申请人
HALLIBURTON COMPANY
发明人
RENSVOLD ROGER F.
分类号
E21B43/08
主分类号
E21B43/08
代理机构
代理人
主权项
地址
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