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发明名称
Preparing oxidized minerals for concentration by froth flotation
摘要
申请公布号
US1831808(A)
申请公布日期
1931.11.17
申请号
US19300440621
申请日期
1930.03.31
申请人
FERRIS LOCKWOOD W
发明人
FERRIS LOCKWOOD W.
分类号
B03D1/02
主分类号
B03D1/02
代理机构
代理人
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地址
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