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发明名称
Forbedret oljebasert borevæske
摘要
申请公布号
NO981159(D0)
申请公布日期
1998.03.16
申请号
NO19980001159
申请日期
1998.03.16
申请人
M-I DRILLING FLUIDS L.L.C.
发明人
PATEL, ARVIND D.
分类号
C09K;C09K8/32;C09K8/36;C09K8/52;E21B21/06;(IPC1-7):C09K
主分类号
C09K
代理机构
代理人
主权项
地址
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