| 摘要 |
<p>A support structure for a road warning sign comprising a pair of elongated hinged crossbar members having support leg members pivotally connected thereto at their ends, said support leg members being adapted to be swung outwardly and downwardly from a folded location along the crossbar members to a ground engaging position whereby said hingedly connected crossbar members close to secure therebetween a sheet material road sign.</p> |
