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Application filed by Ladislav Jamriska, Stefan Capko, Rudolf MichnafiledCriticalLadislav Jamriska
Priority to CS861726ApriorityCriticalpatent/CS254224B1/en
Publication of CS172686A1publicationCriticalpatent/CS172686A1/en
Publication of CS254224B1publicationCriticalpatent/CS254224B1/en