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 filedfiledCritical
Priority to PL1987264701ApriorityCriticalpatent/PL148345B2/en
Publication of PL264701A2publicationCriticalpatent/PL264701A2/en
Publication of PL148345B2publicationCriticalpatent/PL148345B2/en