Abstract: A stackable drawer box having a plurality of side walls and boxes for a coupling element disposed thereon. The boxes and the coupling element are provided with lug members and stops enabling a displacement of the coupling element in a box from an inoperative position, in which a coupling element is present within a box of a single drawer box, into a coupling position, in which a coupling element coacts with the boxes of two stacked drawer boxes, and in which a displacement of the coupling element relative to both boxes is blocked by the lug members and the stops. A filing cabinet composed of a plurality of drawer boxes comprises a base and an upper portion, both being coupled to the drawer boxes in the same manner as the drawer boxes mutually.

Abstract: A binder strip for binding loose leaves having perforations therein through which flexible wires can be inserted. The binder strip comprises a substantially U-shaped rail having holes in its bottom surface for the passage of said wires, and the rail is provided at least at one end with a clamping member pivotally connected to the rail and in operative position accommodated by the rail for the clamping down a wire, said clamping member being formed in one integral part with said rail and with a flexible bridge member joining said rail and said clamping member and providing for pivoting action.