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Application filed by Milan Bozik, Eduard Zamocnik, Ferdinand Ing HnidzikfiledCriticalMilan Bozik
Priority to CS843964ApriorityCriticalpatent/CS243926B1/en
Publication of CS396484A1publicationCriticalpatent/CS396484A1/en
Publication of CS243926B1publicationCriticalpatent/CS243926B1/en