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Application filed by Johannes VestrefiledCriticalJohannes Vestre
Priority to NO760507ApriorityCriticalpatent/NO138984C/en
Publication of NO760507LpublicationCriticalpatent/NO760507L/en
Publication of NO138984BpublicationCriticalpatent/NO138984B/en
Publication of NO138984CpublicationCriticalpatent/NO138984C/en