Regulation (EEC) No 3121/74 of the Commission of 11 December 1974 re-establishing the levying of customs duties on gloves, mittens and mitts, knitted or crocheted, not elastic or rubberized, of cotton, falling within heading No 60.02, originating in developing countries to which the preferential tariff arrangements set out in Council Regulation (EEC) No 3503/73 of 18 December 1974 apply