Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from NO811275Aexternal-prioritypatent/NO148949C/no
Application filed by Bjerkan M Simbas SivilingeniorfiledCriticalBjerkan M Simbas Sivilingenior
Priority to NO813658ApriorityCriticalpatent/NO149948C/no
Publication of NO813658LpublicationCriticalpatent/NO813658L/no
Publication of NO149948BpublicationCriticalpatent/NO149948B/no
Publication of NO149948CpublicationCriticalpatent/NO149948C/no