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发明名称
Verfahren und Anordnung zum Halten des Versatzes beim Abbau mit ueberhaengendem Versatz in steiler und halbsteiler Lagerung
摘要
申请公布号
DE1092863(B)
申请公布日期
1960.11.17
申请号
DE1957ST12737
申请日期
1957.07.05
申请人
BERGWERKSVERBAND GESELLSCHAFT MIT BESCHRAENKTER HAFTUNG
发明人
KOORMANN HEINRICH;ACKERSCHOTT WILHELM
分类号
E21F15/04
主分类号
E21F15/04
代理机构
代理人
主权项
地址
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