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发明名称
Flotation concentration
摘要
申请公布号
US1771549(A)
申请公布日期
1930.07.29
申请号
US19280311962
申请日期
1928.10.11
申请人
ROSCOE H. CHANNING, JR.
发明人
PHELAN ROBERT E.;LOWE SHERWIN P.
分类号
B03D1/02;B03D1/06
主分类号
B03D1/02
代理机构
代理人
主权项
地址
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