Railway traffic controlling system,申请号US19350024165-传众专利搜索

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发明名称	Railway traffic controlling system
摘要
申请公布号	US2096930(A)	申请公布日期	1937.10.26
申请号	US19350024165	申请日期	1935.05.31
申请人	GENERAL RAILWAY SIGNAL COMPANY	发明人	WILLING JOSEPH E.
分类号	B61L5/06	主分类号	B61L5/06
代理机构		代理人
主权项
地址

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