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经营范围
发明名称
IRON ORE TREATING PROCESS
摘要
申请公布号
CA857816(A)
申请公布日期
1970.12.08
申请号
CAD857816
申请日期
申请人
THE REGENTS OF THE UNIVERSITY OF MINNESOTA
发明人
RONALD M. HAYS
分类号
主分类号
代理机构
代理人
主权项
地址
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