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发明名称
MASCHINE ZUM ERWEITERN EINES STOLLENS, PILOTLOCHES OD. DGL.
摘要
申请公布号
DE3942013(A1)
申请公布日期
1991.06.27
申请号
DE19893942013
申请日期
1989.12.20
申请人
WIRTH MASCHINEN- UND BOHRGERAETE-FABRIK GMBH, 5140 ERKELENZ, DE
发明人
HURTZ, GEORG, DIPL.-ING.;STEUFMEHL, WILLI, DIPL.-ING., 5140 ERKELENZ, DE
分类号
E21D9/10;E21D9/11
主分类号
E21D9/10
代理机构
代理人
主权项
地址
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