Improvements relating to the manufacture of railway and tramway rails,申请号GB19320023183-传众专利搜索

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发明名称	Improvements relating to the manufacture of railway and tramway rails
摘要
申请公布号	GB406029(A)	申请公布日期	1934.02.19
申请号	GB19320023183	申请日期	1932.08.18
申请人	CHRISTER PETER SANDBERG;OSCAR FRIDOLF ALEXANDER SANDBERG;NILS PERCY PATRICK SANDBERG	发明人
分类号	C21D9/04	主分类号	C21D9/04
代理机构		代理人
主权项
地址

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