Changes made by 79/367/EEC: Commission Decision of 22 March 1979 completing the Commission Decision of 23 May 1977 allowing admission free of Common Customs Tariff duties of the scientific apparatus described as 'PAR lock-in amplifier, model 128 A with tuned amplifier option, model 128 A/98'
EU Decision 1979/367
No changes made by 79/367/EEC: Commission Decision of 22 March 1979 completing the Commission Decision of 23 May 1977 allowing admission free of Common Customs Tariff duties of the scientific apparatus described as 'PAR lock-in amplifier, model 128 A with tuned amplifier option, model 128 A/98' are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.