Rail sweep for railway cars,申请号US19370181567-传众专利搜索

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发明名称	Rail sweep for railway cars
摘要
申请公布号	US2114721(A)	申请公布日期	1938.04.19
申请号	US19370181567	申请日期	1937.12.24
申请人	FAIRMONT RAILWAY MOTORS, INC.	发明人	MIDGLEY JOSEPH
分类号	B61F19/02	主分类号	B61F19/02
代理机构		代理人
主权项
地址

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