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发明名称
Roadway switch for traffic counting systems
摘要
申请公布号
US2922003(A)
申请公布日期
1960.01.19
申请号
US19580741799
申请日期
1958.06.13
申请人
ROSCOE JOHN P
发明人
ROSCOE JOHN P.
分类号
G08G1/015;H01H3/14
主分类号
G08G1/015
代理机构
代理人
主权项
地址
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