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 Instytut Szkła i CeramikifiledCriticalInstytut Szkła i Ceramiki
Priority to PL367168ApriorityCriticalpatent/PL202242B1/en
Publication of PL367168A1publicationCriticalpatent/PL367168A1/en
Publication of PL202242B1publicationCriticalpatent/PL202242B1/en