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发明名称
Gesteinsdrehbohrer
摘要
申请公布号
DE584358(C)
申请公布日期
1933.09.18
申请号
DE1932S106661D
申请日期
1932.10.19
申请人
SIEMENS-SCHUCKERTWERKE AKT.-GES.
发明人
分类号
E21B10/54
主分类号
E21B10/54
代理机构
代理人
主权项
地址
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