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经营范围
发明名称
Vorrichtung zur Herstellung von Bohrschaechten
摘要
申请公布号
DE1167290(B)
申请公布日期
1964.04.09
申请号
DE1955D021096
申请日期
1955.08.16
申请人
DEILMANN BERGBAU G.M.B.H.
发明人
BIEDENDICK DR. CARL-HANS
分类号
E21B4/16
主分类号
E21B4/16
代理机构
代理人
主权项
地址
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