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发明名称
RECOVERING OIL
摘要
申请公布号
GB8620271(D0)
申请公布日期
1986.10.01
申请号
GB19860020271
申请日期
1986.08.20
申请人
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV
发明人
分类号
C09K8/58;E21B43/20;(IPC1-7):E21B43/22
主分类号
C09K8/58
代理机构
代理人
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