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发明名称
Extraction of copper from ores
摘要
申请公布号
US1848416(A)
申请公布日期
1932.03.08
申请号
US19300461634
申请日期
1930.06.16
申请人
CHARLES A. PALMER
发明人
JR. EDWARD EISENHAUER,
分类号
C22B15/00
主分类号
C22B15/00
代理机构
代理人
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