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发明名称
PNEUMATIC SUBMERSIBLE BORING TOOL
摘要
申请公布号
EP1076754(A1)
申请公布日期
2001.02.21
申请号
EP19990917743
申请日期
1999.05.04
申请人
PERMON S.R.O.
发明人
KOUDELKA, VLADIMIR;STROS, JAN
分类号
E21B7/12;E21B4/14;(IPC1-7):E21B4/14
主分类号
E21B7/12
代理机构
代理人
主权项
地址
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