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Application filed by Bures Jaroslav, Karel Ing Csc Kulisek, Vladimir KupskyfiledCriticalBures Jaroslav
Priority to CS85598ApriorityCriticalpatent/CS253218B1/en
Publication of CS59885A1publicationCriticalpatent/CS59885A1/en
Publication of CS253218B1publicationCriticalpatent/CS253218B1/en