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发明名称
DRILLING FLUIDS AND METHODS OF DRILLING USING THEM
摘要
申请公布号
GB1495874(A)
申请公布日期
1977.12.21
申请号
GB19760012601
申请日期
1976.03.29
申请人
NL IND INC
发明人
分类号
C09K8/02;(IPC1-7):C09K7/00
主分类号
C09K8/02
代理机构
代理人
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地址
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