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经营范围
发明名称
Process for obtaining nickel and cobalt from a mixed sulphide mattre
摘要
申请公布号
US2790713(A)
申请公布日期
1957.04.30
申请号
US19520326173
申请日期
1952.12.15
申请人
HEINE KENWORTHY
发明人
KENWORTHY HEINE
分类号
C22B23/02
主分类号
C22B23/02
代理机构
代理人
主权项
地址
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