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发明名称
Verfahren und Einrichtung zum Wegladen von Haufwerk beim Schachtabteufen
摘要
申请公布号
DE1058454(B)
申请公布日期
1959.06.04
申请号
DE1954D017412
申请日期
1954.03.25
申请人
DEMAG-GREIFERFABRIK G.M.B.H.
发明人
DENTGEN JOHANN
分类号
E21D1/04
主分类号
E21D1/04
代理机构
代理人
主权项
地址
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