Apparatus for heat treating rails,申请号US19370142434-传众专利搜索

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发明名称	Apparatus for heat treating rails
摘要
申请公布号	US2129552(A)	申请公布日期	1938.09.06
申请号	US19370142434	申请日期	1937.05.13
申请人	THE OXWELD RAILROAD SERVICE COMPANY	发明人	JR. PERCIVAL HUNTER,
分类号	C21D9/04;E01B31/18	主分类号	C21D9/04
代理机构		代理人
主权项
地址

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