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Publication date
Application filed by Karl SoerbyfiledCriticalKarl Soerby
Priority to NO780657ApriorityCriticalpatent/NO141974C/no
Publication of NO780657LpublicationCriticalpatent/NO780657L/no
Publication of NO141974BpublicationCriticalpatent/NO141974B/no
Publication of NO141974CpublicationCriticalpatent/NO141974C/no