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发明名称
CONCENTRATION OF IRON ORES
摘要
申请公布号
CA466494(A)
申请公布日期
1950.07.11
申请号
CAD466494
申请日期
申请人
AMERICAN CYANAMID COMPANY
发明人
EARL CONRAD HERKENHOFF
分类号
主分类号
代理机构
代理人
主权项
地址
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