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经营范围
发明名称
Improvements in and relating to traffic signals
摘要
申请公布号
GB422755(A)
申请公布日期
1935.01.17
申请号
GB19340010336
申请日期
1934.04.05
申请人
ETHREA CHARLES WEST
发明人
分类号
G08G1/095
主分类号
G08G1/095
代理机构
代理人
主权项
地址
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