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 Przed Budownictwa Wodno MeliorfiledCriticalPrzed Budownictwa Wodno Melior
Priority to PL25312385ApriorityCriticalpatent/PL146454B1/en
Publication of PL253123A1publicationCriticalpatent/PL253123A1/en
Publication of PL146454B1publicationCriticalpatent/PL146454B1/en