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Application filed by Novotny Otakar, Pirko Jan, Jaroslav ManlfiledCriticalNovotny Otakar
Priority to CS858257ApriorityCriticalpatent/CS254802B1/en
Publication of CS825785A1publicationCriticalpatent/CS825785A1/en
Publication of CS254802B1publicationCriticalpatent/CS254802B1/en