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Application filed by Zdenek Svarc, Novak Lubomir, Miroslav Ing Pavelka, Prochazka Karel, Tersl VladimirfiledCriticalZdenek Svarc
Priority to CS852633ApriorityCriticalpatent/CS252262B1/en
Publication of CS263385A1publicationCriticalpatent/CS263385A1/en
Publication of CS252262B1publicationCriticalpatent/CS252262B1/en