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发明名称
Bohrer fuer Gesteinsdrehbohrmaschinen
摘要
申请公布号
DE914723(C)
申请公布日期
1954.07.08
申请号
DE1949P033083
申请日期
1949.02.03
申请人
WALLRAM HARTMETALL G.M.B.H.
发明人
FUCHS WILLI
分类号
E21B10/40
主分类号
E21B10/40
代理机构
代理人
主权项
地址
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