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发明名称
ORE FLOTATION AGENT
摘要
申请公布号
CA315858(A)
申请公布日期
1931.10.06
申请号
CAD315858
申请日期
申请人
THE BARRETT COMPANY
发明人
FREDERICK G. MOSES;EDWARD J. CANAVAN
分类号
主分类号
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