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发明名称
Procédé d'abatage et de chargement du charbon et dispositif pour l'application de ce procédé
摘要
申请公布号
FR878358(A)
申请公布日期
1943.01.19
申请号
FRD878358
申请日期
1942.01.09
申请人
GEWERKSCHAFT EISENHU:TTE WESTFALIA
发明人
分类号
E21F13/06
主分类号
E21F13/06
代理机构
代理人
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地址
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