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Application filed by Srutek Josef, Manek Oldrich, Jaroslav Riman, Masek Vaclav, Vaclav Ing MalasekfiledCriticalSrutek Josef
Priority to CS848949ApriorityCriticalpatent/CS254711B1/en
Publication of CS894984A1publicationCriticalpatent/CS894984A1/en
Publication of CS254711B1publicationCriticalpatent/CS254711B1/en