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发明名称
METHODS OF CONCENTRATING FLUORSPAR ORES
摘要
申请公布号
CA468676(A)
申请公布日期
1950.10.10
申请号
CAD468676
申请日期
申请人
OZARK-MAHONING COMPANY
发明人
BALLARD H. CLEMMONS;JULIUS BRUCE CLEMMER
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主分类号
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