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Publication date
Application filed by Miroslav Spudil, Ladislav MelkafiledCriticalMiroslav Spudil
Priority to CS868031ApriorityCriticalpatent/CS260512B1/en
Publication of CS803186A1publicationCriticalpatent/CS803186A1/en
Publication of CS260512B1publicationCriticalpatent/CS260512B1/en