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Application filed by Petr Ing Borecky, Alois Ing CimburekfiledCriticalPetr Ing Borecky
Priority to CS857548ApriorityCriticalpatent/CS252074B1/en
Publication of CS754885A1publicationCriticalpatent/CS754885A1/en
Publication of CS252074B1publicationCriticalpatent/CS252074B1/en