| 摘要 |
An advertisement display formed with two side columns with at least one advertisement module provided therebetween. The module consists of a top unit and a pivoting lower unit. The top unit is slidable within the side columns. A longitudinal wall is spaced from a bottom wall of the top unit defining a utility space therebetween. The lower unit is locked and prevented from pivoting when the top unit with the longitudinal wall is slid into a downward position, and is allowed to pivot when the top unit with the longitudinal wall is slid upwardly unlocking the bottom unit. |
