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经营范围
发明名称
Improvements in and relating to road traffic control systems
摘要
申请公布号
GB409877(A)
申请公布日期
1934.05.10
申请号
GB19330007990
申请日期
1933.03.16
申请人
THE BRITISH THOMSON-HOUSTON COMPANY LIMITED;JOHN HENRY CANSDALE
发明人
分类号
G08G1/085
主分类号
G08G1/085
代理机构
代理人
主权项
地址
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