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发明名称
Dispositif d'extraction et/ou de chargement automatique du charbon dans les mines
摘要
申请公布号
FR59752(E)
申请公布日期
1954.07.19
申请号
FRD59752
申请日期
1949.11.07
申请人
GEWERKSCHAFT EISENHUETTE WESTFALIA
发明人
分类号
E21C29/16
主分类号
E21C29/16
代理机构
代理人
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地址
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