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 Inst SpawalnictwafiledCriticalInst Spawalnictwa
Priority to PL29388792ApriorityCriticalpatent/PL166244B1/en
Publication of PL293887A1publicationCriticalpatent/PL293887A1/en
Publication of PL166244B1publicationCriticalpatent/PL166244B1/en