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发明名称
Perfectionnements à la production du zinc
摘要
申请公布号
FR974773(A)
申请公布日期
1951.02.26
申请号
FRD974773
申请日期
1948.11.09
申请人
THE NATIONAL SMELTING COMPANY LIMITED
发明人
分类号
C22B19/04;C22B19/30
主分类号
C22B19/04
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代理人
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