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Application filed by Rolf BjerkefiledCriticalRolf Bjerke
Priority to NO843058ApriorityCriticalpatent/NO154911C/en
Publication of NO843058LpublicationCriticalpatent/NO843058L/en
Publication of NO154911BpublicationCriticalpatent/NO154911B/en
Publication of NO154911CpublicationCriticalpatent/NO154911C/en