Signaling system for railroads,申请号US19350015645-传众专利搜索

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发明名称	Signaling system for railroads
摘要
申请公布号	US2122382(A)	申请公布日期	1938.06.28
申请号	US19350015645	申请日期	1935.04.10
申请人	GENERAL RAILWAY SIGNAL COMPANY	发明人	REICHARD WADE H.
分类号	B61L23/16	主分类号	B61L23/16
代理机构		代理人
主权项
地址

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