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发明名称
Verfahren zur Aufbereitung natuerlicher Silicate auf hochaktive Bleicherde
摘要
申请公布号
DE580712(C)
申请公布日期
1933.07.14
申请号
DE1931B151916D
申请日期
1931.09.04
申请人
HANS LEO LEHMANN
发明人
分类号
B01J20/12
主分类号
B01J20/12
代理机构
代理人
主权项
地址
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