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发明名称
VERFAHREN UND VORRICHTUNG ZUM BEARBEITEN BZW. BOHREN, VORZUGSWEISE FEINBOHREN VON ELLIPTISCHEN LOECHERN
摘要
申请公布号
ATA293087(A)
申请公布日期
1989.06.15
申请号
AT19870002930
申请日期
1987.11.05
申请人
ERNST KRAUSE & CO.
发明人
GRUBER ROBERT ING.
分类号
B23Q1/54;B23Q27/00;(IPC1-7):B23B41/04
主分类号
B23Q1/54
代理机构
代理人
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