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Application filed by Halfdan Kielland TellefsenfiledCriticalHalfdan Kielland Tellefsen
Priority to DK420577ApriorityCriticalpatent/DK142156B/da
Publication of DK420577ApublicationCriticalpatent/DK420577A/da
Publication of DK142156BpublicationCriticalpatent/DK142156B/da
Application grantedgrantedCritical
Publication of DK142156CpublicationCriticalpatent/DK142156C/da