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 NO882921Aexternal-prioritypatent/NO174216C/no
Application filed by Norwegian ContractorsfiledCriticalNorwegian Contractors
Priority to NO892691ApriorityCriticalpatent/NO169558C/no
Publication of NO892691D0publicationCriticalpatent/NO892691D0/no
Publication of NO892691LpublicationCriticalpatent/NO892691L/no
Priority to GB9014426Aprioritypatent/GB2233373B/en
Publication of NO169558BpublicationCriticalpatent/NO169558B/no
Publication of NO169558CpublicationCriticalpatent/NO169558C/no