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Application filed by Prochazka Jan, Zdenek Ing FrundlfiledCriticalProchazka Jan
Priority to CS84556ApriorityCriticalpatent/CS238684B1/en
Publication of CS55684A1publicationCriticalpatent/CS55684A1/en
Publication of CS238684B1publicationCriticalpatent/CS238684B1/en