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发明名称
WATER-BASE CLAYEY DRILLING FLUIDS
摘要
申请公布号
US3629101(A)
申请公布日期
1971.12.21
申请号
USD3629101
申请日期
1969.02.25
申请人
FARBWERKE HOECHST AG. VORMALS MEISTER LUCIUS & BRUNING
发明人
MARTIN HILLE;DIETER ULMSCHNEIDER
分类号
C09K8/24;(IPC1-7):C10M7/00;E21B21/04
主分类号
C09K8/24
代理机构
代理人
主权项
地址
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