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Application filed by Bohuslav Coufal, Jaroslav Mikes, Jaroslav ProchazkafiledCriticalBohuslav Coufal
Priority to CS862403ApriorityCriticalpatent/CS258985B1/en
Publication of CS240386A1publicationCriticalpatent/CS240386A1/en
Publication of CS258985B1publicationCriticalpatent/CS258985B1/en