Regulation (ECSC, EEC, Euratom) No 721/70 of the Council of 20 March 1970 amending Council Regulation No 422/67/EEC, 5/67/Euratom of 25 July 1967 determining the emoluments of the President and members of the Commission and of the President, Judges, Advocates-General and Registrar of the Court of Justice