JUDGMENT OF THE COURT OF FIRST INSTANCE of 17 September 1998 in Case T-50/96: Primex Produkte Import-Export GmbH & Co. KG and Others v Commission of the European Communities (Action for annulment - Importation of high-quality beef ('Hilton beef') - Regulation (EEC) No 1430/79 - Article 13 - Commission decision refusing remission of import duties - Rights of the defence - Manifest error of assessment)