Method of making a brake drum air-cooling device,申请号US19490110092-传众专利搜索

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发明名称	Method of making a brake drum air-cooling device
摘要
申请公布号	US2698989(A)	申请公布日期	1955.01.11
申请号	US19490110092	申请日期	1949.08.13
申请人	ALBERT LYON GEORGE	发明人	LYON GEORGE ALBERT
分类号	B21D53/26	主分类号	B21D53/26
代理机构		代理人
主权项
地址

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