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发明名称
Procédé de réduction de l'étain en partant de matières avec ou sans teneur en zinc ou en d'autres métaux
摘要
申请公布号
FR714588(A)
申请公布日期
1931.11.17
申请号
FRD714588
申请日期
1931.03.31
申请人
BERZELIUS METALLHUTTEN-GESELLSCHAFT M.B.H.
发明人
分类号
C22B25/00;C22B25/02
主分类号
C22B25/00
代理机构
代理人
主权项
地址
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