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发明名称
Ore concentrators
摘要
申请公布号
US2893556(A)
申请公布日期
1959.07.07
申请号
US19560558213
申请日期
1956.01.10
申请人
GEORGE OKEY
发明人
OKEY GEORGE
分类号
B03B5/02
主分类号
B03B5/02
代理机构
代理人
主权项
地址
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