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Application filed by Karel Ing Trubac, Vladimir Ing LiskafiledCriticalKarel Ing Trubac
Priority to CS821951ApriorityCriticalpatent/CS232015B1/en
Publication of CS195182A1publicationCriticalpatent/CS195182A1/en
Publication of CS232015B1publicationCriticalpatent/CS232015B1/en