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经营范围
发明名称
DRILLING FLUIDS
摘要
申请公布号
IE900803(L)
申请公布日期
1990.09.08
申请号
IE19900000803
申请日期
1990.03.07
申请人
AALBORG CISERV INTERNATIONAL A/S,
发明人
分类号
C09K8/32;C09K;C09K8/34;(IPC1-7):C09K7/06
主分类号
C09K8/32
代理机构
代理人
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地址
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