发明名称 Railroad crossing signal apparatus
摘要 A traffic warning system which alerts approaching vehicle traffic to the approach of a train in a crossing. The system includes a plurality of surface mounted lights partially embedded in and placed across a roadway. Once activated, the flashing lights warn drivers of approaching vehicles that the train is approaching, and that caution should be exercised.
申请公布号 US6683540(B1) 申请公布日期 2004.01.27
申请号 US20020141198 申请日期 2002.05.07
申请人 HARRISON MICHAEL A. 发明人 HARRISON MICHAEL A.
分类号 B61L29/24;E01F9/06;G08G1/005;G08G1/095;(IPC1-7):G08G1/095 主分类号 B61L29/24
代理机构 代理人
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