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Application filed by Michalek Jaroslav, Krenek Frantisek, Bartonik Petr, Jiri VisingrfiledCriticalMichalek Jaroslav
Priority to CS886954ApriorityCriticalpatent/CS269449B1/en
Publication of CS695488A1publicationCriticalpatent/CS695488A1/en
Publication of CS269449B1publicationCriticalpatent/CS269449B1/en