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经营范围
发明名称
Improvements relating to road traffic controlling electric signalling systems
摘要
申请公布号
GB565970(A)
申请公布日期
1944.12.06
申请号
GB19430010301
申请日期
1943.06.25
申请人
THE SIEMENS AND GENERAL ELECTRIC RAILWAY SIGNAL COMPANY LIMITED;HUBERT JOHN NAPIER RIDDLE
发明人
分类号
G08G1/08
主分类号
G08G1/08
代理机构
代理人
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地址
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