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 Fridtjof Edvardsen, Nils AltefiledCriticalFridtjof Edvardsen
Priority to NO842812ApriorityCriticalpatent/NO156382C/no
Publication of NO842812LpublicationCriticalpatent/NO842812L/no
Publication of NO156382BpublicationCriticalpatent/NO156382B/no
Publication of NO156382CpublicationCriticalpatent/NO156382C/no