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Application filed by Vaclav Sindelar, Miroslav Ing Skaloud, Blahoslav Ing SlechtafiledCriticalVaclav Sindelar
Priority to CS833253ApriorityCriticalpatent/CS233787B1/en
Publication of CS325383A1publicationCriticalpatent/CS325383A1/en
Publication of CS233787B1publicationCriticalpatent/CS233787B1/en