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发明名称
Improvements in and relating to the treatment of metal surfaces
摘要
申请公布号
GB635595(A)
申请公布日期
1950.04.12
申请号
GB19470022628
申请日期
1947.08.14
申请人
FRANZ HALLA
发明人
分类号
C23C8/40
主分类号
C23C8/40
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代理人
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