Changes made by 77/444/EEC: Commission Decision of 24 June 1977 allowing admission free of Common Customs Tariff duties of scientific apparatus described as 'MKS-High Accuracy Baratron Sensor Head type 90 AH-1000'
EU Decision 1977/444
No changes made by 77/444/EEC: Commission Decision of 24 June 1977 allowing admission free of Common Customs Tariff duties of scientific apparatus described as 'MKS-High Accuracy Baratron Sensor Head type 90 AH-1000' are recorded.
From legislation.gov.uk's record of changes, the official one: see it there.