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发明名称
OIL BASED DRILLING MUDS
摘要
申请公布号
GB9117217(D0)
申请公布日期
1991.09.25
申请号
GB19910017217
申请日期
1991.08.09
申请人
BRITISH PETROLEUM COMPANY, THE P.L.C
发明人
分类号
C09K8/36
主分类号
C09K8/36
代理机构
代理人
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地址
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