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Application filed by Miroslav Macourek, Alois NovotnyfiledCriticalMiroslav Macourek
Priority to CS858945ApriorityCriticalpatent/CS252091B1/cs
Publication of CS894585A1publicationCriticalpatent/CS894585A1/cs
Publication of CS252091B1publicationCriticalpatent/CS252091B1/cs