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 Ryszard GrabowskifiledCriticalRyszard Grabowski
Priority to PL29228591ApriorityCriticalpatent/PL165203B1/en
Publication of PL292285A1publicationCriticalpatent/PL292285A1/en
Publication of PL165203B1publicationCriticalpatent/PL165203B1/en