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Application filed by Viewegh Josef, Ladislav Ing Novak, Stanislav Rsdr Smolik, Pavel Ing Holesovsky, Antonin Ing LisyfiledCriticalViewegh Josef
Priority to CS868930ApriorityCriticalpatent/CS261788B1/en
Publication of CS893086A1publicationCriticalpatent/CS893086A1/en
Publication of CS261788B1publicationCriticalpatent/CS261788B1/en