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Application filed by Sirokorad Jurij, Alexander Ing Mahn, Vladimir Ing SobotkafiledCriticalSirokorad Jurij
Priority to CS837327ApriorityCriticalpatent/CS241394B1/en
Publication of CS732783A1publicationCriticalpatent/CS732783A1/en
Publication of CS241394B1publicationCriticalpatent/CS241394B1/en