(under subclass 196) Subject matter wherein the window comprises a light admitting panel which rotates about a horizontal axis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
217, for an air passage between a window sill and sash bottom having a wall for upwardly deflecting inlet air, the wall being adjustable for angle or having a swingable mounting.
221, for an air passage between a window sill and sash bottom which includes light admitting parallel or concentric slats which rotate about a horizontal axis.
224, for a window in combination with light admitting parallel or concentric ventilating slats which rotate about a horizontal axis.
