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发明名称
LUTTENVERBINDUNG
摘要
申请公布号
DE7837782(U1)
申请公布日期
1979.05.10
申请号
DE19780037782U
申请日期
1978.12.21
申请人
RUHRKOHLE AG, 4300 ESSEN
发明人
分类号
E21F1/06;(IPC1-7):E21F1/06
主分类号
E21F1/06
代理机构
代理人
主权项
地址
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