| 摘要 |
Securing at least a first portion of a panel to a surface generally includes a base plate that is secured to the surface and a rail that is engaged by the base plate and that defines a first channel capable of receiving the first portion of the panel. The surface may include a billboard and the panel may include an advertisement applied to the billboard. A cover (60) may be secured over the rail (40). The cover may include an outwardly extending tongue (64) that engages the first channel to secure the first portion of the panel in the first channel. |
