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发明名称
Mechanische Bohreinrichtung fuer drehendes Bohren
摘要
申请公布号
DE850881(C)
申请公布日期
1952.09.29
申请号
DE1950M005929
申请日期
1950.09.12
申请人
MASCHINENFABRIK RUDOLF HAUSHERR & SOEHNE
发明人
HENKEL KARL
分类号
E21B19/20
主分类号
E21B19/20
代理机构
代理人
主权项
地址
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