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 Elektrokemisk AsfiledCriticalElektrokemisk As
Priority to FI193657ApriorityCriticalpatent/FI32380A/fi
Publication of FI32380ApublicationCriticalpatent/FI32380A/fi