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发明名称
摘要
申请公布号
BE622930(A)
申请公布日期
1963.01.16
申请号
BED622930
申请日期
1962.09.27
申请人
发明人
分类号
C23C14/20;D06M11/83;D06Q1/04
主分类号
C23C14/20
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代理人
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地址
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