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经营范围
发明名称
Concentration of metalliferous ores by flotation
摘要
申请公布号
US2169313(A)
申请公布日期
1939.08.15
申请号
US19380231506
申请日期
1938.09.24
申请人
MINERALS SEPARATION NORTH AMERICAN CORPORATION
发明人
WILLIAMS CARL F.;TROTER WILLIAM
分类号
B03D1/012
主分类号
B03D1/012
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代理人
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