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发明名称
Kappenverbindung fuer den Strebausbau im Grubenbetrieb unter Tage
摘要
申请公布号
DE974877(C)
申请公布日期
1961.05.25
申请号
DE1950V000643
申请日期
1950.03.04
申请人
VANWERSCH ALOYS;PETER VANWERSCH;LUDWIG VANWERSCH
发明人
VANWERSCH ALOYS
分类号
E21D17/086
主分类号
E21D17/086
代理机构
代理人
主权项
地址
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