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发明名称
Vorrichtung zur Gewinnung und gleichzeitigen Foerderung von Mineralien mittels einerKette, an der Schraemleisten angeordnet sind
摘要
申请公布号
DE954052(C)
申请公布日期
1956.12.13
申请号
DE1952N005784
申请日期
1952.07.13
申请人
NILOS G.M.B.H. FOERDERBAND-AUSRUESTUNG
发明人
OBERBOSSEL GUSTAV
分类号
E21C25/54
主分类号
E21C25/54
代理机构
代理人
主权项
地址
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