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发明名称
Drilling mud
摘要
申请公布号
US2649414(A)
申请公布日期
1953.08.18
申请号
US19520283159
申请日期
1952.04.19
申请人
STANDARD OIL DEVELOPMENT COMPANY
发明人
SALATHIEL RICHARD A.
分类号
C09K8/22
主分类号
C09K8/22
代理机构
代理人
主权项
地址
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