Improvements in or relating to chrome steel,申请号GB19370004251-传众专利搜索

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发明名称	Improvements in or relating to chrome steel
摘要
申请公布号	GB487262(A)	申请公布日期	1938.06.17
申请号	GB19370004251	申请日期	1937.02.12
申请人	MANNESMANNROEHREN-WERKE	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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