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发明名称
Vorrichtung zum Verlegen von Strebfoerderern
摘要
申请公布号
DE849684(C)
申请公布日期
1952.09.18
申请号
DE1948P022177D
申请日期
1948.11.20
申请人
MASCHINENFABRIK;EISENGIESSEREI A. BEIEN
发明人
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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