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发明名称
FLUID LOSS ADDITIVE FOR WELL DRILLING FLUIDS
摘要
申请公布号
GB8519823(D0)
申请公布日期
1985.09.11
申请号
GB19850019823
申请日期
1985.08.07
申请人
DRESSER INDUSTRIES 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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