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Priority claimed from GB8000844Aexternal-prioritypatent/GB2042977B/en
Application filed by Dunlop LtdfiledCriticalDunlop Ltd
Publication of IT8019145A0publicationCriticalpatent/IT8019145A0/it
Application grantedgrantedCritical
Publication of IT1209177BpublicationCriticalpatent/IT1209177B/it