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经营范围
发明名称
Improvements in road traffic control signal apparatus
摘要
申请公布号
GB415669(A)
申请公布日期
1934.08.30
申请号
GB19340008899
申请日期
1934.03.21
申请人
JOSEF HEUER
发明人
分类号
G08G1/096
主分类号
G08G1/096
代理机构
代理人
主权项
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