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发明名称
Verfahren und Gesenk zum Ausschmieden des Endes von Schienen o. dgl. auf eine andere Querschnittsform von groesserer Hoehe
摘要
申请公布号
DE525546(C)
申请公布日期
1931.05.26
申请号
DE1929K114470D
申请日期
1929.04.26
申请人
FRIED. KRUPP AKT.-GES.
发明人
NAAF KARL
分类号
B21K7/00
主分类号
B21K7/00
代理机构
代理人
主权项
地址
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