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经营范围
发明名称
Process of melting, purification, and recovery of metals
摘要
申请公布号
US2151696(A)
申请公布日期
1939.03.28
申请号
US19360095175
申请日期
1936.08.10
申请人
GOLDSMITH GEORGE H
发明人
GOLDSMITH GEORGE H.
分类号
C22B7/00
主分类号
C22B7/00
代理机构
代理人
主权项
地址
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