Improvements in matrix dies for extruding heated metals,申请号GB19300022957-传众专利搜索

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发明名称	Improvements in matrix dies for extruding heated metals
摘要
申请公布号	GB356411(A)	申请公布日期	1931.09.10
申请号	GB19300022957	申请日期	1930.07.30
申请人	FRITZ SINGER;ALFRED LIEBERGELD	发明人
分类号	B21C25/02	主分类号	B21C25/02
代理机构		代理人
主权项
地址

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