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经营范围
发明名称
Improvements in method of manufacturing alumina
摘要
申请公布号
GB397409(A)
申请公布日期
1933.08.24
申请号
GB19330008572
申请日期
1933.03.21
申请人
KALUNITE COMPANY
发明人
分类号
C01F7/32
主分类号
C01F7/32
代理机构
代理人
主权项
地址
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