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经营范围
发明名称
A traffic-operated road signal
摘要
申请公布号
GB382680(A)
申请公布日期
1932.11.03
申请号
GB19310022529
申请日期
1931.08.10
申请人
GEORGE WHITE
发明人
分类号
G08G1/02;H01H13/18
主分类号
G08G1/02
代理机构
代理人
主权项
地址
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