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发明名称
SYSTEM FOR PRODUCING WELLS
摘要
申请公布号
CA815339(A)
申请公布日期
1969.06.17
申请号
CAD815339
申请日期
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ, N.V.
发明人
ROBERT N. TUTTLE
分类号
主分类号
代理机构
代理人
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