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经营范围
发明名称
Procédé de fabrication de l'alumine
摘要
申请公布号
FR790688(A)
申请公布日期
1935.11.25
申请号
FRD790688
申请日期
1935.05.31
申请人
发明人
CHARLES SEAILLES JEAN
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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