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发明名称
摘要
申请公布号
SU433242(A1)
申请公布日期
1974.06.25
申请号
SU19711678389
申请日期
1971.07.05
申请人
发明人
分类号
C25D3/38;(IPC1-7):C23B5/18;C23B5/46
主分类号
C25D3/38
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