Railway draft rigging,申请号US19290335477-传众专利搜索

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发明名称	Railway draft rigging
摘要
申请公布号	US1860113(A)	申请公布日期	1932.05.24
申请号	US19290335477	申请日期	1929.01.28
申请人	W. H. MINER, INC.	发明人	O'CONNOR JOHN F.
分类号	B61G9/12	主分类号	B61G9/12
代理机构		代理人
主权项
地址

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