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发明名称
SELF-PROPELLED BORING RAM
摘要
申请公布号
EP0392237(A3)
申请公布日期
1991.11.06
申请号
EP19900105626
申请日期
1990.03.24
申请人
TRACTO-TECHNIK PAUL SCHMIDT, MASCHINENFABRIK KG
发明人
SCHMELZER, ROBERT, DIPL.-ING.
分类号
E21B7/24;E21B4/14;E21B4/20;E21B7/06;E21B7/26;E21B47/022;E21D9/08;E21D9/093;(IPC1-7):E21B4/14
主分类号
E21B7/24
代理机构
代理人
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地址
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