Article 1
The ' Agreement regulating the sale on the Belgian market of instantaneous gas water-heaters and bath-heaters ' concluded between the undertakings : ( i ) SPRL Le Renova , Forest ( ii ) SA Contigea , Brussels ( iii ) SNCR Joski et Fils , Ghent ( iv ) SA Etablissements Guillaume Prist , Antwerp ( v ) SAB Chaffoteaux et Maury , Brussels providing for standard discounts and other conditions of sale and after-sales service , and an allowance on the annual turnover of customers on purchases from all suppliers , whether members of the Agreement or not , constitutes , at least for the period from 29 December 1965 to 31 December 1970 , a breach of Article 85 ( 1 ) of the Treaty establishing the European Economic Community .