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发明名称
Silicic acid gels
摘要
申请公布号
US2071987(A)
申请公布日期
1937.02.23
申请号
US19330700622
申请日期
1933.12.01
申请人
E. I. DU PONT DE NEMOURS & COMPANY
发明人
RIDLER EARL S.
分类号
B01J20/10;C01B33/157
主分类号
B01J20/10
代理机构
代理人
主权项
地址
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