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.)
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Publication date
Priority claimed from NO882921Aexternal-prioritypatent/NO174216C/en
Application filed by Norwegian ContractorsfiledCriticalNorwegian Contractors
Priority to NO892690ApriorityCriticalpatent/NO174678C/en
Publication of NO892690D0publicationCriticalpatent/NO892690D0/en
Publication of NO892690LpublicationCriticalpatent/NO892690L/en
Publication of NO174678BpublicationCriticalpatent/NO174678B/en
Publication of NO174678CpublicationCriticalpatent/NO174678C/en