发明名称 Device for signalling roadworks on the highway
摘要 Device for signalling an area of roadworks on the highway, which device comprises a tube covered with at least one heat-shrinking sleeve exhibiting at least two alternate colours. In a preferred embodiment the tube is metal. <IMAGE>
申请公布号 FR2629242(A1) 申请公布日期 1989.09.29
申请号 FR19880004134 申请日期 1988.03.23
申请人 DONNE GILLES;BROU ALAIN;OCQUIDENT JEAN CLAUDE 发明人
分类号 E01F13/02 主分类号 E01F13/02
代理机构 代理人
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