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发明名称
DRILL-TYPE PIERCING MANDREL PRZEBIJARKA WIERTARKOWA
摘要
申请公布号
PL107929(B1)
申请公布日期
1980.03.31
申请号
PL19770196125
申请日期
1977.02.19
申请人
发明人
分类号
C21B7/12;(IPC1-7):F27D3/15
主分类号
C21B7/12
代理机构
代理人
主权项
地址
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