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发明名称
Traffic signal controller
摘要
申请公布号
US2249481(A)
申请公布日期
1941.07.15
申请号
US19390297703
申请日期
1939.10.03
申请人
GENERAL ELECTRIC COMPANY
发明人
LEONARD VINCENT W.
分类号
G08G1/097
主分类号
G08G1/097
代理机构
代理人
主权项
地址
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