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 Zygmunt Maciejewski, Stanislaw OsinskifiledCriticalZygmunt Maciejewski
Priority to PL29604292ApriorityCriticalpatent/PL296042A1/en
Publication of PL296042A1publicationCriticalpatent/PL296042A1/en