Joined Cases C-322/07 P, C-327/07 P and C-338/07 P: Judgment of the Court (Third Chamber) of 3 September 2009 — Papierfabrik August Koehler AG, Bolloré SA, Distribuidora Vizcaína de Papeles SL v Commission of the European Communities (Appeals — Agreements, decisions and concerted practices — Carbonless paper — Inconsistency between the statement of objections and the contested decision — Infringement of the rights of the defence — Consequences — Distortion of the clear sense of the evidence — Participation in the infringement — Duration of the infringement — Regulation No 17 — Article 15(2) — Guidelines on the method of setting fines — Principle of equal treatment — Principle of proportionality — Obligation to state the reasons on which the decision is based — Reasonable period for duration of proceedings before the Court of First Instance)