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发明名称
TRAFFIC CONTROL SYSTEM
摘要
<p>A traffic control system (180) utilizes geometric or mathematical designs (188, 192) and/or secondary lights for traffic signals so as to allow red/green color blind individuals to determine whether the signal is for stop or go.</p>
申请公布号
WO2003063107(A2)
申请公布日期
2003.07.31
申请号
US2003001683
申请日期
2003.01.21
申请人
发明人
分类号
主分类号
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