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经营范围
发明名称
Drilling fluid
摘要
申请公布号
GB9502578(D0)
申请公布日期
1995.03.29
申请号
GB19950002578
申请日期
1995.02.10
申请人
SOFITECH N.V.
发明人
分类号
C09K8/12;C09K8/22
主分类号
C09K8/12
代理机构
代理人
主权项
地址
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