Sign box definition
Sign box means a box frame, which may or may not be equipped with illumination, and which holds a face plate that displays a message;
Sign box means a box frame, which may or may not be illuminated, which holds or supports a face plate that displays a message; (boîtier d’enseigne)
Sign box means a sign that contains all copy within a single enclosed cabinet that is mounted to a wall or other structure. Box signs, also referred to as can signs, typically use slide-in panels to display messages.