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发明名称
Winde zum Verruecken von Strebfoerdermitteln als geschlossenes Ganzes
摘要
申请公布号
DE833637(C)
申请公布日期
1952.03.10
申请号
DE1950G000923
申请日期
1950.01.28
申请人
GELSENKIRCHENER BERGWERKS-AKTIEN-GESELLSCHAFT
发明人
STEYMANN FRITZ
分类号
E21F13/08
主分类号
E21F13/08
代理机构
代理人
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