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Application filed by Josef Trcalek, Jaromir Ing TrcalekfiledCriticalJosef Trcalek
Priority to CS868411ApriorityCriticalpatent/CS260058B1/en
Publication of CS841186A1publicationCriticalpatent/CS841186A1/en
Publication of CS260058B1publicationCriticalpatent/CS260058B1/en