Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority claimed from GB23099/76Aexternal-prioritypatent/GB1584553A/en
Application filed by Dunlop LtdfiledCriticalDunlop Ltd
Priority to IN705/DEL/80ApriorityCriticalpatent/IN149327B/en
Publication of IN149327BpublicationCriticalpatent/IN149327B/en