Commission Regulation (EEC) No 2144/77 of 28 September 1977 re-establishing the levying of customs duties on knives with cutting blades, serrated or not (including pruning knives), other than knives falling within heading No 82.06, falling within heading No 82.09, originating developing countries to which the preferential tariff arrangements set out in Council Regulation (EEC) No 3021/76 apply