Package for at least one disc provided with a central centre hole

The invention relates to a package for at least one disc provided with a central centre hole, the package comprising a plurality of rectangular com ponent parts connected to one another so as to be swivellable about parallel swivelling axes, said component parts including two covers arranged on mutually opposite outer sides, and an intermediate disc carrier part which is arranged between the said covers and carries clamping elements which serve to secure a disc in the region of the centre hole. 

EU Patent –  EP0420350B1

US patent – US4535888