Method of making tubular railway car axles,申请号US19550541409-传众专利搜索

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发明名称	Method of making tubular railway car axles
摘要
申请公布号	US2829431(A)	申请公布日期	1958.04.08
申请号	US19550541409	申请日期	1955.10.19
申请人	BRAUCHLER CHARLES A	发明人	BRAUCHLER CHARLES A.
分类号	B21K1/06	主分类号	B21K1/06
代理机构		代理人
主权项
地址

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