Improvements in and relating to axle-bearings,申请号GB19300007012-传众专利搜索

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发明名称	Improvements in and relating to axle-bearings
摘要
申请公布号	GB340866(A)	申请公布日期	1931.01.08
申请号	GB19300007012	申请日期	1930.03.03
申请人	EDWARD FRANCIS MATTHEWS	发明人
分类号	B61F17/20	主分类号	B61F17/20
代理机构		代理人
主权项
地址

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