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发明名称
摘要
申请公布号
SU366050(A1)
申请公布日期
1973.01.16
申请号
SU19711658287
申请日期
1971.04.14
申请人
发明人
分类号
B23H1/02;(IPC1-7):B23P1/00
主分类号
B23H1/02
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