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 SE8200379Aexternal-prioritypatent/SE432795B/en
Application filed by Wallther Eng AbfiledCriticalWallther Eng Ab
Publication of NO833425LpublicationCriticalpatent/NO833425L/en
Publication of NO158821BpublicationCriticalpatent/NO158821B/en
Publication of NO158821CpublicationCriticalpatent/NO158821C/en