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发明名称
Laengs eines Strebfoerderers verfahrbare Gewinnungsmaschine mit Schraemstangen und Raeumern
摘要
申请公布号
DE932783(C)
申请公布日期
1955.09.08
申请号
DE1952E005993
申请日期
1952.09.07
申请人
GEBR. EICKHOFF;EISENGIESSEREI M.B.H.
发明人
ZAPP PETER EWALD
分类号
E21C25/14
主分类号
E21C25/14
代理机构
代理人
主权项
地址
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