Car classification system for railroads,申请号US19380242250-传众专利搜索

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发明名称	Car classification system for railroads
摘要
申请公布号	US2194352(A)	申请公布日期	1940.03.19
申请号	US19380242250	申请日期	1938.11.25
申请人	GENERAL RAILWAY SIGNAL COMPANY	发明人	BRIXNER FREDERICK W.;COLEY NELSON B.
分类号	B61L17/00;B61L25/04	主分类号	B61L17/00
代理机构		代理人
主权项
地址

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