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Application filed by Pavel Ing Sevcik, Jiri Ing KlapetekfiledCriticalPavel Ing Sevcik
Priority to CS858391ApriorityCriticalpatent/CS257051B1/cs
Publication of CS839185A1publicationCriticalpatent/CS839185A1/cs
Publication of CS257051B1publicationCriticalpatent/CS257051B1/cs