Case C-534/07 P: Judgment of the Court (First Chamber) of 3 September 2009 — William Prym GmbH & Co. KG, Prym Consumer GmbH & Co. KG v Commission of the European Communities (Appeal — Competition — Agreements, decisions and concerted practices — European haberdashery market (needles) — Market sharing agreements — Infringement of the rights of the defence — Obligation to state the reasons on which the decision is based — Fine — Guidelines — Gravity of the infringement — Actual impact on the market — Implementation of the cartel)