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发明名称
Froth flotation of minerals
摘要
申请公布号
US1819112(A)
申请公布日期
1931.08.18
申请号
US19290357338
申请日期
1929.04.22
申请人
NATIONAL ANILINE & CHEMICAL COMPANY, INC.
发明人
PERKINS ROBERT L.
分类号
B03D1/012
主分类号
B03D1/012
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代理人
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