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发明名称
Durch ein Druckmittel betriebener Zylinder zum Vordruecken von Foerderern
摘要
申请公布号
DE1027163(B)
申请公布日期
1958.04.03
申请号
DE1953B023632
申请日期
1953.01.02
申请人
JOSEF BRAND;CAMPBELL RITCHIE
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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