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Priority to PL20112377ApriorityCriticalpatent/PL107350B1/pl
Publication of PL201123A1publicationCriticalpatent/PL201123A1/pl
Publication of PL107350B1publicationCriticalpatent/PL107350B1/pl
PL20112377A1977-09-291977-09-29Urzadzenie do zabezpieczania wod otwartych przed cieklymi plywajacymi zanieczyszczeniami nie mieszajacymi sie z woda
PL107350B1
(pl)