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 B P Kolejowych, Tadeusz Graczyk, Wieslaw Milkowski, Witold KobosfiledCriticalB P Kolejowych
Priority to PL94303025ApriorityCriticalpatent/PL173345B1/en
Publication of PL303025A1publicationCriticalpatent/PL303025A1/en
Publication of PL173345B1publicationCriticalpatent/PL173345B1/en