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经营范围
发明名称
Alkylsulfonated polysaccharides and mortar and concrete mixes containing them
摘要
申请公布号
USH493(H1)
申请公布日期
1988.07.05
申请号
US06/575733
申请日期
1984.02.01
申请人
发明人
分类号
主分类号
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主权项
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