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发明名称
Method of ore separation
摘要
申请公布号
US1955979(A)
申请公布日期
1934.04.24
申请号
US19320630094
申请日期
1932.08.23
申请人
THE RUTH COMPANY
发明人
JR. JOSEPH P. RUTH,
分类号
B03D1/06
主分类号
B03D1/06
代理机构
代理人
主权项
地址
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