TRAFFIC CONTROL SYSTEM,申请号CAD385970-传众专利搜索

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发明名称	TRAFFIC CONTROL SYSTEM
摘要
申请公布号	CA385970(A)	申请公布日期	1939.12.26
申请号	CAD385970	申请日期
申请人	NORTHERN ELECTRIC COMPANY;AUTOMATIC SIGNAL CORPORATION	发明人	CHARLES D. GEER
分类号		主分类号
代理机构		代理人
主权项
地址

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