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经营范围
发明名称
Improvements in and relating to road traffic control signals
摘要
申请公布号
GB703197(A)
申请公布日期
1954.01.27
申请号
GB19510021341
申请日期
1951.09.11
申请人
THE FOREST CITY ELECTRIC CO. LIMITED;ARTHUR WILLIAMS
发明人
分类号
G08G1/07
主分类号
G08G1/07
代理机构
代理人
主权项
地址
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