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发明名称
VORRICHTUNG ZUR VERLAENGERUNG EINER LUTTENLEITUNG
摘要
申请公布号
DE8028323(U1)
申请公布日期
1982.02.18
申请号
DE19800028323U
申请日期
1980.10.23
申请人
RUHRKOHLE AG, 4300 ESSEN, DE;MASCHINENFABRIK KORFMANN GMBH, 5810 WITTEN, DE
发明人
分类号
E21F1/04;(IPC1-7):E21F1/04
主分类号
E21F1/04
代理机构
代理人
主权项
地址
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