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Application filed by Novak Josef, Vaclav Forejt, Jan Ing ZvanovecfiledCriticalNovak Josef
Priority to CS867407ApriorityCriticalpatent/CS260594B1/en
Publication of CS740786A1publicationCriticalpatent/CS740786A1/en
Publication of CS260594B1publicationCriticalpatent/CS260594B1/en