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经营范围
发明名称
Drilling fluid thinner
摘要
申请公布号
US4842770(A)
申请公布日期
1989.06.27
申请号
US19880162835
申请日期
1988.03.02
申请人
PHILLIPS PETROLEUM COMPANY
发明人
PATEL, BHARAT
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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