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发明名称
Device for recovery of minerals
摘要
申请公布号
US2287804(A)
申请公布日期
1942.06.30
申请号
US19380220807
申请日期
1938.07.22
申请人
CARL S. HALVERSON
发明人
JOHNSON HENRY L.
分类号
C22B11/10
主分类号
C22B11/10
代理机构
代理人
主权项
地址
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