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Application filed by Anovsky Ivan Ing I, Pelegrin Eduard, Ladislav SzarvasyfiledCriticalAnovsky Ivan Ing I
Priority to CS857155ApriorityCriticalpatent/CS252522B1/en
Publication of CS715585A1publicationCriticalpatent/CS715585A1/en
Publication of CS252522B1publicationCriticalpatent/CS252522B1/en