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Application filed by Hauskrecht Peter, Ferdinand Dipl Tech Vavrinec, Jan Mravec, Markusek Julius, Svitek Imrich, Poor Robert, Stefan LeskafiledCriticalHauskrecht Peter
Priority to CS861573ApriorityCriticalpatent/CS252897B1/en
Publication of CS157386A1publicationCriticalpatent/CS157386A1/en
Publication of CS252897B1publicationCriticalpatent/CS252897B1/en