Coded track circuits for railroads,申请号US19420466150-传众专利搜索

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发明名称	Coded track circuits for railroads
摘要
申请公布号	US2381722(A)	申请公布日期	1945.08.07
申请号	US19420466150	申请日期	1942.11.19
申请人	GENERAL RAILWAY SIGNAL COMPANY	发明人	COLEY NELSON B.
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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