Filipek, PrzemysławPrzemysławFilipek2024-12-192024-12-192018https://hdl.handle.net/20.500.14629/17934Patenthttps://ewyszukiwarka.pue.uprp.gov.pl/search/pwp-details/P.426268WUP 07/2019BUP 06/2019P.426268Pat.232603