Improvements in traffic control systems,申请号GB19300016464-传众专利搜索

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发明名称	Improvements in traffic control systems
摘要
申请公布号	GB355741(A)	申请公布日期	1931.08.28
申请号	GB19300016464	申请日期	1930.05.28
申请人	AUTOMATIC SIGNAL CORPORATION	发明人
分类号	G08G1/08	主分类号	G08G1/08
代理机构		代理人
主权项
地址

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