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发明名称
摘要
申请公布号
SU486890(A1)
申请公布日期
1975.10.05
申请号
SU19731925613
申请日期
1973.06.05
申请人
发明人
分类号
B23P19/027;B23P19/02;(IPC1-7):B23P19/02
主分类号
B23P19/027
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