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Priority claimed from GB08224808Aexternal-prioritypatent/GB2123750B/en
Application filed by British Printing & CommfiledCriticalBritish Printing & Comm
Priority claimed from PCT/GB1982/000253external-prioritypatent/WO1983000656A1/en
Application grantedgrantedCritical
Publication of ATE18649T1publicationCriticalpatent/ATE18649T1/en