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Publication date
Priority claimed from CS832678Aexternal-prioritypatent/CS231867B1/en
Application filed by Rysavy Drahomir, Kratochvil Frantisek, Jaroslav Rndr Petruj, Vlastimil Ing Douda, Oldrich Ing Csc BlazekfiledCriticalRysavy Drahomir
Priority to CS334884ApriorityCriticalpatent/CS239981B3/en
Publication of CS334884A1publicationCriticalpatent/CS334884A1/en
Publication of CS239981B3publicationCriticalpatent/CS239981B3/en