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Application filed by Jan Formanek, Oldrich Ing Socha, Marie Koubkova, Marie Vomackova, Gorgon OldrichfiledCriticalJan Formanek
Priority to CS832935ApriorityCriticalpatent/CS231870B1/cs
Publication of CS293583A1publicationCriticalpatent/CS293583A1/cs
Publication of CS231870B1publicationCriticalpatent/CS231870B1/cs