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Publication date
Priority claimed from GB3719673Aexternal-prioritypatent/GB1463063A/en
Application filed by Ici LtdfiledCriticalIci Ltd
Priority claimed from GB3719674Aexternal-prioritypatent/GB1476493A/en
Publication of IE39648LpublicationCriticalpatent/IE39648L/en
Publication of IE39648B1publicationCriticalpatent/IE39648B1/en