FRICTION MEANS FOR RAILWAY CAR TRUCK BOLSTER,申请号CAD502659-传众专利搜索

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发明名称	FRICTION MEANS FOR RAILWAY CAR TRUCK BOLSTER
摘要
申请公布号	CA502659(A)	申请公布日期	1954.05.18
申请号	CAD502659	申请日期
申请人	W. H. MINER	发明人	WILLIAM E. WITHALL
分类号		主分类号
代理机构		代理人
主权项
地址

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