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发明名称
Ore concentrators
摘要
申请公布号
US2718306(A)
申请公布日期
1955.09.20
申请号
US19530346862
申请日期
1953.04.06
申请人
COLORADO DRY CONCENTRATOR COMPANY
发明人
BROWN HAROLD
分类号
B07B7/08;H01J29/64
主分类号
B07B7/08
代理机构
代理人
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地址
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