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发明名称
Verfahren zur Herstellung von Walzprofilen mit quer zur Walzrichtung verlaufenden oertlichen Verstaerkungen, insbesondere von Eisenbahnschwellen mit verstaerkten Schienensitzen
摘要
申请公布号
DE551752(C)
申请公布日期
1932.06.07
申请号
DE1929V025639D
申请日期
1929.08.16
申请人
VEREINIGTE STAHLWERKE A. G.
发明人
分类号
B21H7/00
主分类号
B21H7/00
代理机构
代理人
主权项
地址
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