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Application filed by Vaclav Ing Hartych, Zdena Ing Ledrova, Vladislav Liska, Leo Lukovsky, Lubomir Ing Lustyk, Miklas Zdenek, Josef Ing Oujezdsky, Karel Ing Csc ZdrazilfiledCriticalVaclav Ing Hartych
Priority to CS85741ApriorityCriticalpatent/CS254716B1/en
Publication of CS74185A1publicationCriticalpatent/CS74185A1/en
Publication of CS254716B1publicationCriticalpatent/CS254716B1/en