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发明名称
Process of removing silica from minerals, slags, and similar materials
摘要
申请公布号
US2242497(A)
申请公布日期
1941.05.20
申请号
US19390265764
申请日期
1939.04.03
申请人
WALTHER H. DUISBERG
发明人
ZINTL EDUARD;KRINGS WALTER;BRAUNING WILHELM
分类号
C01G1/02
主分类号
C01G1/02
代理机构
代理人
主权项
地址
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