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Application filed by Kvetoslav Dipl Tech Koutny, Ivo Ing NesporfiledCriticalKvetoslav Dipl Tech Koutny
Priority to CS368788ApriorityCriticalpatent/CS272573B1/en
Publication of CS368788A1publicationCriticalpatent/CS368788A1/en
Publication of CS272573B1publicationCriticalpatent/CS272573B1/en