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Application filed by Konstantin Ing Pogorielov, Kral Bohumil, Stanislav Ing Foltan, Ladislav Mistina, Michal SzentefiledCriticalKonstantin Ing Pogorielov
Priority to CS843792ApriorityCriticalpatent/CS241328B1/en
Publication of CS379284A1publicationCriticalpatent/CS379284A1/en
Publication of CS241328B1publicationCriticalpatent/CS241328B1/en