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Application filed by Jiri Ing Kolena, Rubas Vlastimil, Macek Vladimir, Kopecky Ivan, Karel Ing StraznickyfiledCriticalJiri Ing Kolena
Priority to CS844032ApriorityCriticalpatent/CS239237B1/en
Publication of CS403284A1publicationCriticalpatent/CS403284A1/en
Publication of CS239237B1publicationCriticalpatent/CS239237B1/en