(under subclass 181) Devices in which the plural strip, slat or panel device is mounted or supported in a frame, which is intended for removable mounting on some other support.
(1) Note. Two or more framed panels do not go in this subclass unless there is an additional mounting frame for the combination.
SEE OR SEARCH THIS CLASS, SUBCLASS:
180, for those in which a single strip, slat or panel closes an opening in one other or in a plurality of other strips, slats or panels.
353, for additional frames for a single fabric filled frame, where the additional frames are not necessary for fastening the fabric.