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发明名称
Drilling mud treating composition
摘要
申请公布号
US2721840(A)
申请公布日期
1955.10.25
申请号
US19490085935
申请日期
1949.04.06
申请人
DIAMOND ALKALI COMPANY
发明人
LEE EDISON G.
分类号
C09K8/035
主分类号
C09K8/035
代理机构
代理人
主权项
地址
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