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发明名称
Bohrwerkzeug bestehend aus einem Bohrer und einer Einspannhülse
摘要
申请公布号
CH461923(A)
申请公布日期
1968.08.31
申请号
CH19680002349
申请日期
1968.02.19
申请人
GEBRUEDER HELLER
发明人
MINDERMANN,HEINRICH
分类号
E21B17/042;(IPC1-7):B23B51/12
主分类号
E21B17/042
代理机构
代理人
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