发明名称 Wear of road marking arrangements
摘要 <p>A housing 10 for a reflective insert 11 is embedded in a road. The housing 10 is provided with ridges that have transverse grooves 22 and 23 of different depths. Traffic going over the housing wears away the housing. The disappearance of one of the grooves or the reduced depth of one of the grooves is an indication that wear has occurred. <IMAGE></p>
申请公布号 GB2285079(B) 申请公布日期 1997.02.05
申请号 GB19930026410 申请日期 1993.12.24
申请人 * REFLECTING ROADSTUDS LIMITED 发明人 TREVOR * SHAW
分类号 E01F9/06;(IPC1-7):E01F9/06 主分类号 E01F9/06
代理机构 代理人
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