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Priority claimed from NO2161/68Aexternal-prioritypatent/NO131653C/no
Application filed by Rank Xerox LtdfiledCriticalRank Xerox Ltd
Priority to NO741993ApriorityCriticalpatent/NO134778C/no
Publication of NO134778BpublicationCriticalpatent/NO134778B/no
Publication of NO134778CpublicationCriticalpatent/NO134778C/no