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Application filed by Miloslav Hodr, Zdenek Zabrodsky, Vaclav Ing Borovec, Miroslav RysavyfiledCriticalMiloslav Hodr
Priority to CS838539ApriorityCriticalpatent/CS239112B1/cs
Publication of CS853983A1publicationCriticalpatent/CS853983A1/cs
Publication of CS239112B1publicationCriticalpatent/CS239112B1/cs