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发明名称
Verfahren zur Herstellung von Bohrungen an genau bestimmter Stelle
摘要
申请公布号
DE520335(C)
申请公布日期
1931.03.10
申请号
DE1929K114597D
申请日期
1929.05.04
申请人
KARL KUEMMERLE
发明人
分类号
B23B47/28
主分类号
B23B47/28
代理机构
代理人
主权项
地址
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