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Application filed by Knut RoekenesfiledCriticalKnut Roekenes
Priority to NO812062ApriorityCriticalpatent/NO148531C/no
Publication of NO812062LpublicationCriticalpatent/NO812062L/no
Publication of NO148531BpublicationCriticalpatent/NO148531B/no
Publication of NO148531CpublicationCriticalpatent/NO148531C/no