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发明名称
Abbauvorrichtung fuer steil gelagerte Floeze
摘要
申请公布号
DE890493(C)
申请公布日期
1953.09.21
申请号
DE1943G006995D
申请日期
1943.12.04
申请人
GEWERKSCHAFT EISENHUETTE WESTFALIA
发明人
HERRMANN JULIUS
分类号
E21C27/38
主分类号
E21C27/38
代理机构
代理人
主权项
地址
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