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Publication date
Application filed by Barta Cestmir, Oldrich Ing Liska, Ales Ing Csc TriskafiledCriticalBarta Cestmir
Priority to CS837382ApriorityCriticalpatent/CS232597B1/en
Publication of CS738283A1publicationCriticalpatent/CS738283A1/en
Publication of CS232597B1publicationCriticalpatent/CS232597B1/en