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发明名称
Rohrverbindung, insbesondere Wetterluttenverbindung fuer den Grubenbetrieb unter Tage
摘要
申请公布号
DE843779(C)
申请公布日期
1952.07.14
申请号
DE1951ST02955
申请日期
1951.01.09
申请人
STAHLWERKE BRUENINGHAUS G.M.B.H.
发明人
DOERING WILLY
分类号
E21F1/06;F16L37/12
主分类号
E21F1/06
代理机构
代理人
主权项
地址
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