Traffic control system and apparatus,申请号US19340752606-传众专利搜索

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发明名称	Traffic control system and apparatus
摘要
申请公布号	US2122410(A)	申请公布日期	1938.07.05
申请号	US19340752606	申请日期	1934.11.12
申请人	THE ENGINEERING AND RESEARCH CORPORATION	发明人	EAMES EDWARD H.
分类号	G08G1/082	主分类号	G08G1/082
代理机构		代理人
主权项
地址

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