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申请公布号
SU364390(A1)
申请公布日期
1972.12.28
申请号
SU19701469445
申请日期
1970.08.27
申请人
发明人
分类号
B23B3/30;(IPC1-7):B23B3/30
主分类号
B23B3/30
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