Abstract: The hanging device comprises rigid strap hanging members to which the straps are secured, each formed at its upper part with transversally spaced hook-shaped openings to be hooked on transversal hooking members identically spaced arranged within a rigid suspending hollow girder having the shape of an inverted U.

Abstract: There is disclosed a foldable panel made out of two superimposed web surfaces having major transparent portions, the web surfaces being secured one to each other by successive pairs of connection lines defining therebetween pockets within which are enclosed bands of reduced thickness out of an insulating material and formed with a plurality of transversing holes to permit to see through the panel. Between the pockets, the connection lines further define sheaths for receiving hinge tubes, some of which have laterally protruding ends with rollers cooperating with side guiding tracks for the panel.