The patent

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　　Due to the exclusive features of its horizontal elastic band closure, in 2004, Ciak received patent certification for useful model, especially issued for the way the elastic band is applied on the cover spine.

　　Technical data:

　　- Patent certificate for useful model No. 0000253500

　　- Issued on November 4th, 2004

　　- Owner: Diarpell s.r.l.