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发明名称
摘要
申请公布号
SU361857(A1)
申请公布日期
1972.12.13
申请号
SU19711611360
申请日期
1971.01.08
申请人
发明人
分类号
B23Q7/02;B23Q7/00;(IPC1-7):B23Q7/00
主分类号
B23Q7/02
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代理人
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