Method of heat treating steel,申请号US19290356965-传众专利搜索

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发明名称	Method of heat treating steel
摘要
申请公布号	US1853439(A)	申请公布日期	1932.04.12
申请号	US19290356965	申请日期	1929.04.22
申请人	THE DURALOY COMPANY	发明人	LAWRENCE EDWARD S.
分类号	C21D9/46;C21D9/48	主分类号	C21D9/46
代理机构		代理人
主权项
地址

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