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发明名称
Vorrichtung zum Verruecken von Foerdermitteln auf grosser Laenge
摘要
申请公布号
DE827790(C)
申请公布日期
1952.01.14
申请号
DE1949G000251
申请日期
1949.11.01
申请人
GUTEHOFFNUNGSHUETTE OBERHAUSEN A.G.
发明人
LELGEMANN HEINRICH
分类号
E21F13/08
主分类号
E21F13/08
代理机构
代理人
主权项
地址
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