Abstract: A communicating board includes: a display medium including a sheet of fabric, the sheet of fabric comprising, on at least one surface, loops intended to cooperate with a gripping strip provided with hooks; at least one first gripping strip provided with hooks enabling to hold in position the display medium, and at least one substantially rectilinear profile including a first planar connecting surface having the at least one first gripping strip provided with hooks positioned thereon. The first planar connecting surface is inclined towards a rear surface of the display medium when the latter cooperates with the at least one first gripping strip provided with hooks, the first planar connecting surface forming with a visible planar surface of the display medium an angle greater than 30°.

Abstract: A printed panel for displaying an image includes at least one printed image formed by a plurality of opaque parallel strips that are evenly spaced from one other and separated by transparent strips; an optical system formed by the juxtaposition of two flat lenses, the flat lenses of the optical system being arranged in parallel to the plurality of opaque and transparent strips of the printed image; and at least one photovoltaic panel having a surface for collecting sunlight that is arranged opposite a rear surface of the optical system.

Abstract: A communicating board includes: a display medium including a sheet of fabric, the sheet of fabric comprising, on at least one surface, loops intended to cooperate with a gripping strip provided with hooks; at least one first gripping strip provided with hooks enabling to hold in position the display medium, and at least one substantially rectilinear profile including a first planar connecting surface having the at least one first gripping strip provided with hooks positioned thereon. The first planar connecting surface is inclined towards a rear surface of the display medium when the latter cooperates with the at least one first gripping strip provided with hooks, the first planar connecting surface forming with a visible planar surface of the display medium an angle greater than 30°.

Abstract: Apparatus for posting bills that includes a frame containing a window region. A transparent outer film is mounted in the window and coacts with a back film to establish a wallet that is open along one edge for receiving a bill therein. The window has apparatus associated therewith for securing and tensioning the wallet inside the window.