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
Application filed by Arne Johansen, Egil JohansenfiledCriticalArne Johansen
Priority to NO751870ApriorityCriticalpatent/NO136213C/no
Publication of NO751870LpublicationCriticalpatent/NO751870L/no
Publication of NO136213BpublicationCriticalpatent/NO136213B/no
Publication of NO136213CpublicationCriticalpatent/NO136213C/no