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经营范围
发明名称
Procédé et installation de remblayage avec extraction simultanée du charbon
摘要
申请公布号
FR1032228(A)
申请公布日期
1953.06.30
申请号
FRD1032228
申请日期
1951.02.08
申请人
GEBR. EICKHOFF, MASCHINENFABRIK UND EISENGIESSEREI M. B. H.
发明人
分类号
E21F15/06;E21F15/08
主分类号
E21F15/06
代理机构
代理人
主权项
地址
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