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发明名称
Vorrichtung zum Herstellen eines aufwaerts gerichteten Bohrloches
摘要
申请公布号
DE3247632(C1)
申请公布日期
1983.11.17
申请号
DE19823247632
申请日期
1982.12.23
申请人
WIRTH MASCHINEN- UND BOHRGERAETE-FABRIK GMBH, 5140 ERKELENZ, DE
发明人
KLEUTERS, NIKOLAUS, 5130 GEILENKIRCHEN, DE
分类号
B23B47/22;E21B7/02;E21B19/086;(IPC1-7):E21C1/10;E21C5/11;E21B4/18;E21B15/04;E21D1/06
主分类号
B23B47/22
代理机构
代理人
主权项
地址
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