Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB203373*[Aexternal-prioritypatent/GB1432950A/en
Application filed by Ici LtdfiledCriticalIci Ltd
Priority to DK30275ApriorityCriticalpatent/DK30275A/da
Publication of DK30275ApublicationCriticalpatent/DK30275A/da