(under subclass 50) Device provided with a mechanical means movable relative to the closure for imparting movement to the closure which means extends through the openwork panel.
SEE OR SEARCH THIS CLASS, SUBCLASS:
51, for an operator for louver type closures extending through a grille.
356, for a single lever push rod operator for a movable closure.
SEE OR SEARCH CLASS
454, Ventilation,
290, and 322+ for an operator extending through a register grille to impart movement to a pivoted valve combined with ventilating structure, e.g., air duct, air directing structure.