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发明名称
摘要
申请公布号
CS173562(B2)
申请公布日期
1977.02.28
申请号
CS19690005416
申请日期
1969.08.05
申请人
发明人
分类号
C25D5/56;(IPC1-7):C25D5/56
主分类号
C25D5/56
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代理人
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地址
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