Abstract: A device for fastening labels to binders which exhibit slots arranged in pairs at a mutual distance from each other for receiving end sections of label holders, and for firmly locking the end sections in the slots. The label holder is pocket-shaped, is flexible, and exhibits rows of recesses along lateral edge sections opposing each other. Hook-shaped locking elements distributed in rows are received inside the slots. The row of recesses and locking forms formed are adapted to each other in terms of shape for lockable receiving, interacting in pairs, of the respective locking elements in a suitable recess after insertion of the respective label end sections in a suitable slot.

Abstract: A device for fastening prongs in binders, where the prongs are secured to a prong plate arranged to be fastened to the inner sections of a binder spine. Fastening mechanisms are arranged in rows along the binder spine sections. The fastening mechanisms are releasably connectable to supplementary fastening devices located on the respective prong plates. A device for fastening binder sides is also disclosed.

Abstract: A device for fastening labels to binders which exhibit slots arranged in pairs at a mutual distance from each other for receiving end sections of label holders, and for firmly locking the end sections in the slots. The label holder is pocket-shaped, is flexible, and exhibits rows of recesses along lateral edge sections opposing each other. Hook-shaped locking elements distributed in rows are received inside the slots. The row of recesses and locking forms formed are adapted to each other in terms of shape for lockable receiving, interacting in pairs, of the respective locking elements in a suitable recess after insertion of the respective label end sections in a suitable slot.