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发明名称
NONCORRODING WATER BASE DRILLING FLUIDS AND ADDITIVE SYSTEM FOR MAKING SAME
摘要
申请公布号
GB1282614(A)
申请公布日期
1972.07.19
申请号
GB19690053004
申请日期
1969.10.29
申请人
OIL BASE, INC.
发明人
分类号
C09K8/20
主分类号
C09K8/20
代理机构
代理人
主权项
地址
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