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发明名称
Vorrichtung zum schnellen Verbinden und Loesen von Mitnehmerstange und Bohrgestaenge bei Flachbohrgeraeten
摘要
申请公布号
DE1483811(A1)
申请公布日期
1969.02.13
申请号
DE19661483811
申请日期
1966.12.24
申请人
DEUTSCHE ERDOEL AG
发明人
MOELLER-ALTHAUS,HELMUT
分类号
E21B19/18
主分类号
E21B19/18
代理机构
代理人
主权项
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