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发明名称
System of traffic signals for non-stop networks
摘要
申请公布号
US2926333(A)
申请公布日期
1960.02.23
申请号
US19550485935
申请日期
1955.02.03
申请人
MASTEN JOHN K
发明人
MASTEN JOHN K.
分类号
G08G1/07
主分类号
G08G1/07
代理机构
代理人
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地址
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