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发明名称
摘要
申请公布号
DD126179(A1)
申请公布日期
1977.06.22
申请号
DD19760193347
申请日期
1976.06.14
申请人
发明人
分类号
(IPC1-7):B23P1/04
主分类号
(IPC1-7):B23P1/04
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