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发明名称
DRILLING FLUIDS
摘要
申请公布号
US3525688(A)
申请公布日期
1970.08.25
申请号
USD3525688
申请日期
1967.05.08
申请人
PHILLIPS PETROLEUM CO.
发明人
BILLY L. SWANSON
分类号
C09K8/22;(IPC1-7):C10M3/22
主分类号
C09K8/22
代理机构
代理人
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地址
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