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发明名称
摘要
申请公布号
CS156765(B1)
申请公布日期
1974.08.23
申请号
CS19710004595
申请日期
1971.06.22
申请人
发明人
分类号
B23B27/16;(IPC1-7):B23B27/16
主分类号
B23B27/16
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代理人
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地址
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