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Application filed by Sigurd Heien, Loevik RagnhildfiledCriticalSigurd Heien
Priority to NO832382ApriorityCriticalpatent/NO153314C/en
Publication of NO832382LpublicationCriticalpatent/NO832382L/en
Publication of NO153314BpublicationCriticalpatent/NO153314B/en
Publication of NO153314CpublicationCriticalpatent/NO153314C/en