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Application filed by Koudelka Ladislav, Hlinstak Karel, Vladimir Ing PatekfiledCriticalKoudelka Ladislav
Priority to CS878119ApriorityCriticalpatent/CS266261B1/en
Publication of CS811987A1publicationCriticalpatent/CS811987A1/en
Publication of CS266261B1publicationCriticalpatent/CS266261B1/en