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发明名称
Verfahren zur Herstellung von Schienenunterlegplatten mit Querrippen
摘要
申请公布号
DE657224(C)
申请公布日期
1938.02.26
申请号
DE1935K137467D
申请日期
1935.04.03
申请人
FRIED. KRUPP AKT.-GES.
发明人
ZETTWITZ RUDOLF
分类号
B21K9/00
主分类号
B21K9/00
代理机构
代理人
主权项
地址
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