HIGHWAY CROSSING SIGNALING SYSTEM HAVING HIGH SENSITIVITY TO TRAIN SHUNTS,申请号CAD607040-传众专利搜索

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发明名称	HIGHWAY CROSSING SIGNALING SYSTEM HAVING HIGH SENSITIVITY TO TRAIN SHUNTS
摘要
申请公布号	CA607040(A)	申请公布日期	1960.10.18
申请号	CAD607040	申请日期
申请人	GENERAL RAILWAY SIGNAL COMPANY	发明人	GLENN O. FERM;MARCIAN A. SCHEG
分类号		主分类号
代理机构		代理人
主权项
地址

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