(under the class definition) Device comprising a closure panel, per se, combined with a feature particularly adapting the panel for use as a closure, e.g., a lock, a recess for the reception of a hinge, a counterbalance, etc.
SEE OR SEARCH CLASS
52, Static Structures (e.g., Buildings),
613+, for a composite panel having a disparate edging, and subclass 630 for a panel with integral reinforcement.