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经营范围
发明名称
Treatment of silica hydrogels
摘要
申请公布号
GB1123369(A)
申请公布日期
1968.08.14
申请号
GB19650053702
申请日期
1965.12.17
申请人
W. R. GRACE & CO.
发明人
分类号
C01B33/157
主分类号
C01B33/157
代理机构
代理人
主权项
地址
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