Regulation (EEC) No 2789/73 of the Commission of 12 October 1973 re-establishing Common Customs Tariff duties on image projectors (other than cinematographic projectors) etc falling within CCT heading No 90.09, originating in developing countries to which the preferential tariff arrangements set out in Council Regulation (EEC) No 2762/72 of 19 December 1972 apply