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经营范围
发明名称
Herstellung von Tonerde
摘要
申请公布号
DE561981(C)
申请公布日期
1932.10.20
申请号
DED561981D
申请日期
1930.03.08
申请人
LONZA-WERKE ELEKTROCHEMISCHE FABRIKEN G.M.B.H.
发明人
分类号
C01F7/18
主分类号
C01F7/18
代理机构
代理人
主权项
地址
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