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发明名称
Traffic lights for controlling the flow of traffic at a traffic crossing
摘要
申请公布号
US3022490(A)
申请公布日期
1962.02.20
申请号
US19600037933
申请日期
1960.06.22
申请人
DOSAL MARTIN R
发明人
DOSAL MARTIN R.
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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