RAILWAY TRAFFIC CONTROLLING SYSTEM,申请号CAD355777-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	CA355777(A)	申请公布日期	1936.02.04
申请号	CAD355777	申请日期
申请人	THE GENERAL RAILWAY SIGNAL COMPANY	发明人	SEDGEWICK N. WIGHT
分类号		主分类号
代理机构		代理人
主权项
地址

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