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发明名称
An improved process for the manufacture of iron oxide
摘要
申请公布号
GB520690(A)
申请公布日期
1940.05.01
申请号
GB19380028499
申请日期
1938.09.30
申请人
THE PRIESTMAN COLLIERIES LIMITED;THOMAS GLENWRIGHT FRENCH
发明人
分类号
C01G49/02
主分类号
C01G49/02
代理机构
代理人
主权项
地址
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