Railway car truck and journal box,申请号US19310510155-传众专利搜索

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发明名称	Railway car truck and journal box
摘要
申请公布号	US1921882(A)	申请公布日期	1933.08.08
申请号	US19310510155	申请日期	1931.01.21
申请人	THE TIMKEN ROLLER BEARING COMPANY	发明人	HORGER OSCAR J.
分类号	B61F15/14	主分类号	B61F15/14
代理机构		代理人
主权项
地址

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