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Priority claimed from GB7905042Aexternal-prioritypatent/GB2015439B/en
Application filed by Dunlop LtdfiledCriticalDunlop Ltd
Publication of IT7920340A0publicationCriticalpatent/IT7920340A0/it
Application grantedgrantedCritical
Publication of IT1162715BpublicationCriticalpatent/IT1162715B/it