RAILWAY DRAFT RIGGING,申请号CAD308381-传众专利搜索

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发明名称	RAILWAY DRAFT RIGGING
摘要
申请公布号	CA308381(A)	申请公布日期	1931.02.03
申请号	CAD308381	申请日期
申请人	W. H. MINER	发明人	JOHN F. O'CONNER
分类号		主分类号
代理机构		代理人
主权项
地址

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