Traffic control system,申请号US19300492731-传众专利搜索

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发明名称	Traffic control system
摘要
申请公布号	US2016325(A)	申请公布日期	1935.10.08
申请号	US19300492731	申请日期	1930.11.01
申请人	THE ENGINEERING AND RESEARCH CORPORATION	发明人	GEER CHARLES D.
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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