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Priority claimed from NO1967/73Aexternal-prioritypatent/NO136971C/no
Publication of NO764256LpublicationCriticalpatent/NO764256L/no
Application filed by Babcock & Wilcox CofiledCriticalBabcock & Wilcox Co
Priority to NO764256ApriorityCriticalpatent/NO138627C/no
Publication of NO138627BpublicationCriticalpatent/NO138627B/no
Publication of NO138627CpublicationCriticalpatent/NO138627C/no