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 Fijałkowski, Henryk BiskupiakfiledCriticalJanusz Fijałkowski
Priority to PL392431ApriorityCriticalpatent/PL224037B1/pl
Publication of PL392431A1publicationCriticalpatent/PL392431A1/pl
Publication of PL224037B1publicationCriticalpatent/PL224037B1/pl