Improvements in or relating to dies and die steels,申请号GB19420013674-传众专利搜索

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发明名称	Improvements in or relating to dies and die steels
摘要
申请公布号	GB557928(A)	申请公布日期	1943.12.10
申请号	GB19420013674	申请日期	1942.09.29
申请人	HEPPENSTALL COMPANY	发明人
分类号	C22C38/00	主分类号	C22C38/00
代理机构		代理人
主权项
地址

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