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Application filed by Hauskrecht Peter, Ferdinand Dipl Tech Vavrinec, Jan Mravec, Markusek Julius, Svitek Imrich, Poor RobertfiledCriticalHauskrecht Peter
Priority to CS861601ApriorityCriticalpatent/CS252898B1/en
Publication of CS160186A1publicationCriticalpatent/CS160186A1/en
Publication of CS252898B1publicationCriticalpatent/CS252898B1/en