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Application filed by Josef Stary, Zdenek Svec, Vladimir Ing KasparfiledCriticalJosef Stary
Priority to CS886763ApriorityCriticalpatent/CS271397B1/en
Publication of CS676388A1publicationCriticalpatent/CS676388A1/en
Publication of CS271397B1publicationCriticalpatent/CS271397B1/en