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Application filed by Kloboucek Bohumil, Karel Ing Csc Bednar, Cermak BojanfiledCriticalKloboucek Bohumil
Priority to CS867142ApriorityCriticalpatent/CS260588B1/en
Publication of CS714286A1publicationCriticalpatent/CS714286A1/en
Publication of CS260588B1publicationCriticalpatent/CS260588B1/en