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Priority claimed from DK259281Aexternal-prioritypatent/DK146150C/da
Application filed by Richard Bent NissenfiledCriticalRichard Bent Nissen
Publication of NO830486LpublicationCriticalpatent/NO830486L/no
Publication of NO159502BpublicationCriticalpatent/NO159502B/no
Publication of NO159502CpublicationCriticalpatent/NO159502C/no