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Application filed by Schwarz Walter, Vladimir Svoboda, List Jaroslav, Hrbek Milan, Nemec ZbynekfiledCriticalSchwarz Walter
Priority to CS878099ApriorityCriticalpatent/CS263874B1/en
Publication of CS809987A1publicationCriticalpatent/CS809987A1/en
Publication of CS263874B1publicationCriticalpatent/CS263874B1/en