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经营范围
发明名称
Well fluid additive
摘要
申请公布号
GB9912351(D0)
申请公布日期
1999.07.28
申请号
GB19990012351
申请日期
1997.11.24
申请人
BOTTOM LINE INDUSTRIES INC
发明人
BURTS BOYCE D JR
分类号
C09K8/035;C09K8/06;C09K8/20
主分类号
C09K8/035
代理机构
代理人
主权项
地址
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