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经营范围
发明名称
Procédé pour l'obtention d'oxyde ferrique artificiel pur
摘要
申请公布号
FR1072744(A)
申请公布日期
1954.09.15
申请号
FRD1072744
申请日期
1953.01.23
申请人
TRAVAUX INDUSTRIELS PAUL GUILL & COMPAGNIE
发明人
分类号
C01G49/06
主分类号
C01G49/06
代理机构
代理人
主权项
地址
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