Case C-210/06: Judgment of the Court (Grand Chamber) of 16 December 2008 (reference for a preliminary ruling from the Szegedi Ítélőtábla (Republic of Hungary)) — In the proceedings in the case of Cartesio Oktató és Szolgáltató Bt (Transfer of a company seat to a Member State other than the Member State of incorporation — Application for amendment of the entry regarding the company seat in the commercial register — Refusal — Appeal against a decision of a court entrusted with keeping the commercial register — Article 234 EC — Reference for a preliminary ruling — Admissibility — Definition of court or tribunal — Definition of a court or tribunal against whose decisions there is no judicial remedy under national law — Appeal against a decision making a reference for a preliminary ruling — Jurisdiction of appellate courts to order revocation of such a decision — Freedom of establishment — Articles 43 EC and 48 EC)