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发明名称
METHOD OF PREPARING SILICA SOL AND PRODUCT THEREOF
摘要
申请公布号
US3650977(A)
申请公布日期
1972.03.21
申请号
USD3650977
申请日期
1969.03.27
申请人
PHILADELPHIA QUARTZ CO.
发明人
JOHN S. STEPHEN BOBB
分类号
C01B33/141;C01B33/148;(IPC1-7):B01J13/00;C01B33/14;C01B33/18
主分类号
C01B33/141
代理机构
代理人
主权项
地址
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