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经营范围
发明名称
Manufacture of active silica
摘要
申请公布号
US1748315(A)
申请公布日期
1930.02.25
申请号
US19260092362
申请日期
1926.03.04
申请人
I. G. FARBENINDUSTRIE AKTIENGESELLSCHAFT
发明人
STOEWENER FRITZ
分类号
C01B33/152;C01B33/154
主分类号
C01B33/152
代理机构
代理人
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