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 SU884429057Aexternal-prioritypatent/SU1673338A2/en
Application filed by Inst Elektroswarki PatonafiledCriticalInst Elektroswarki Patona
Publication of NO900537D0publicationCriticalpatent/NO900537D0/en
Publication of NO900537LpublicationCriticalpatent/NO900537L/en