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发明名称
DRILLING FLUIDS
摘要
申请公布号
GB8600371(D0)
申请公布日期
1986.02.12
申请号
GB19860000371
申请日期
1986.01.08
申请人
INTERNATIONAL DRILLING FLUIDS LTD
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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