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经营范围
发明名称
Treatment of drilling fluid to reduce water loss
摘要
申请公布号
US2790763(A)
申请公布日期
1957.04.30
申请号
US19530384355
申请日期
1953.10.05
申请人
SOCONY MOBIL OIL COMPANY, INC.
发明人
UPDEGRAFF DAVID M.
分类号
C09K8/90
主分类号
C09K8/90
代理机构
代理人
主权项
地址
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