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.)
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Publication date
Application filed by Politechnika Slaska Im WincentfiledCriticalPolitechnika Slaska Im Wincent
Priority to PL19415176ApriorityCriticalpatent/PL108511B1/pl
Priority to DE19772709111prioritypatent/DE2709111C2/de
Priority to AT141777Aprioritypatent/AT349412B/de
Priority to GB911077Aprioritypatent/GB1569912A/en
Publication of PL194151A1publicationCriticalpatent/PL194151A1/pl
Publication of PL108511B1publicationCriticalpatent/PL108511B1/pl