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发明名称
Strebfoerderer
摘要
申请公布号
DE1021310(B)
申请公布日期
1957.12.27
申请号
DE1952M015336
申请日期
1952.08.30
申请人
MASCHINENFABRIK UND EISENGIESSEREI A. BEIEN
发明人
FRITZSCHE HUGO
分类号
E21C35/12
主分类号
E21C35/12
代理机构
代理人
主权项
地址
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