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 NO21971Aexternal-prioritypatent/NO134119C/no
Application filed by Snam ProgettifiledCriticalSnam Progetti
Priority to NO251171ApriorityCriticalpatent/NO134422C/no
Publication of NO134422BpublicationCriticalpatent/NO134422B/no
Publication of NO134422CpublicationCriticalpatent/NO134422C/no