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经营范围
发明名称
Carboxymethyl hydroxyethyl cellulose as a thickener for drilling mud
摘要
申请公布号
UST104401(I4)
申请公布日期
1984.07.03
申请号
US19820448136
申请日期
1982.12.09
申请人
发明人
分类号
C09K8/10
主分类号
C09K8/10
代理机构
代理人
主权项
地址
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