Cases T-144/07, T-147/07, T-148/07, T-149/07, T-150/07 and T-154/07: Judgment of the General Court of 13 July 2011 — ThyssenKrupp Liften Ascenseurs and Others v Commission (Competition — Agreements, decisions and concerted practices — Market for the installation and maintenance of elevators and escalators — Decision finding an infringement of Article 81 EC — Bid-rigging — Market sharing — Price fixing)