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Application filed by Proksa Bohumil, Jozef Ing Cerny, Zdeno Dr Ing Drsc Voticky, Frimm Richard, Milan Ing Csc Clen Kores RepasfiledCriticalProksa Bohumil
Priority to CS834691ApriorityCriticalpatent/CS231550B1/en
Publication of CS469183A1publicationCriticalpatent/CS469183A1/en
Publication of CS231550B1publicationCriticalpatent/CS231550B1/en