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发明名称
DICKWANDFUTTERROHR FUER DIE TIEFBOHRTECHNIK SOWIE VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG
摘要
申请公布号
DD234896(A1)
申请公布日期
1986.04.16
申请号
DD19850273529
申请日期
1985.02.26
申请人
VEB ZENTR. REPARATUR- U.,AUSRUESTUNGSWERK,,,DD
发明人
SCHWARZMEIER,RUDOLF,DD;GEISLER,HANS-JUERGEN,DD;LANGHAMMER,PETER,DD;NEUBAUER,ADOLF,DD;DUBB,KARL-HEINZ,DD;JAHODA,AXEL,DD;FISCHER,JULIUS,DD
分类号
E21B17/00;(IPC1-7):E21B17/00
主分类号
E21B17/00
代理机构
代理人
主权项
地址
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