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 Janusz LangiewiczfiledCriticalJanusz Langiewicz
Priority to PL31655696ApriorityCriticalpatent/PL316556A1/en
Publication of PL316556A1publicationCriticalpatent/PL316556A1/en