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 Franciszek Baszczok, Andrzej GierszewskifiledCriticalFranciszek Baszczok
Priority to PL388843ApriorityCriticalpatent/PL213683B1/en
Publication of PL388843A1publicationCriticalpatent/PL388843A1/en
Publication of PL213683B1publicationCriticalpatent/PL213683B1/en