Improvements in alloy steels,申请号GB19290006414-传众专利搜索

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发明名称	Improvements in alloy steels
摘要
申请公布号	GB307492(A)	申请公布日期	1930.05.27
申请号	GB19290006414	申请日期	1929.02.27
申请人	VEREINIGTE STAHLWERKE AKTIENGESELLSCHAFT	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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