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Application filed by Jan Palensky, Svatopluk Velecky, Vladimir Ing Vacha, Vilem KaluzafiledCriticalJan Palensky
Priority to CS873290ApriorityCriticalpatent/CS262085B1/en
Publication of CS329087A1publicationCriticalpatent/CS329087A1/en
Publication of CS262085B1publicationCriticalpatent/CS262085B1/en