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发明名称
ORE FLOTATION PROCESS
摘要
申请公布号
CA420393(A)
申请公布日期
1944.05.23
申请号
CAD420393
申请日期
申请人
MINERALS SEPARATION NORTH AMERICAN CORPORATION
发明人
CORNELIUS H. KELLER
分类号
主分类号
代理机构
代理人
主权项
地址
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