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发明名称
Gate monitoring system
摘要
A monitoring system and method is provided for monitoring the lighting and the gate arm position at a railroad crossing.
申请公布号
US8550409(B2)
申请公布日期
2013.10.08
申请号
US201113205203
申请日期
2011.08.08
申请人
HONEK RANDALL G.;GABEL CRAIG P.;FOX DAVID K.;PHELPS GREGGORY C.;RAILWAY EQUIPMENT COMPANY, INC.
发明人
HONEK RANDALL G.;GABEL CRAIG P.;FOX DAVID K.;PHELPS GREGGORY C.
分类号
B61L1/02
主分类号
B61L1/02
代理机构
代理人
主权项
地址
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