Commission Regulation (EEC) No 1684/78 of 17 July 1978 re-establishing the levying of the customs duties on rubber tyres, etc., other than inner tubes and tyre cases of the kind used on bicycles, cycles with an auxiliary motor, motorcycles or motor-scooters, falling within heading No ex 40.11 originating in Yugoslavia, to which the preferential tariff arrangements set out in Council Regulation (EEC) No 2705/77 apply