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经营范围
发明名称
Recovery of oxidized copper
摘要
申请公布号
US1971416(A)
申请公布日期
1934.08.28
申请号
US19320624895
申请日期
1932.07.26
申请人
KEYES HARMON E
发明人
KEYES HARMON E.
分类号
B03D1/00
主分类号
B03D1/00
代理机构
代理人
主权项
地址
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