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Priority claimed from GB3003070Aexternal-prioritypatent/GB1359464A/en
Application filed by Dunlop Holdings LtdfiledCriticalDunlop Holdings Ltd
Publication of FI49796BpublicationCriticalpatent/FI49796B/fi
Application grantedgrantedCritical
Publication of FI49796CpublicationCriticalpatent/FI49796C/fi