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Application filed by Bjerck As Sivilingenioer RoaldfiledCriticalBjerck As Sivilingenioer Roald
Priority to NO831191ApriorityCriticalpatent/NO154532C/no
Publication of NO831191LpublicationCriticalpatent/NO831191L/no
Publication of NO154532BpublicationCriticalpatent/NO154532B/no
Publication of NO154532CpublicationCriticalpatent/NO154532C/no