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发明名称
摘要
申请公布号
BG23497(A1)
申请公布日期
1977.09.15
申请号
BG19760033269
申请日期
1976.05.25
申请人
发明人
分类号
C22B15/00;C25D5/10;(IPC1-7):C25D5/10
主分类号
C22B15/00
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代理人
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