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Application filed by Jan Fikrle, Trnka Jan, Jan KabatekfiledCriticalJan Fikrle
Priority to CS877201ApriorityCriticalpatent/CS265178B1/cs
Priority to IT8822101Aprioritypatent/IT1227233B/it
Publication of CS720187A1publicationCriticalpatent/CS720187A1/cs
Publication of CS265178B1publicationCriticalpatent/CS265178B1/cs