US Patent 7146759 Two-faced optional mat picture frames

This invention discloses composite two faced picture, document and/or other artwork frames, each composed of two separate frames with panes permanently installed on elastomeric pads and fitted to allow pane to pane resilient contact with two sets of displayed material and mats clamped back to back between panes for alternate viewing of either side. Each pair of composite frames are opened and closed quickly and easily, by the user, for frequent changes of displayed material. A variety of methods of opening closing, hanging, or setting up for display, all designed for quick and easy operation, by the user without assistance or tools, are presented.