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Application filed by Vladimir Ing Smakal, Matal OldrichfiledCriticalVladimir Ing Smakal
Priority to CS854558ApriorityCriticalpatent/CS254373B1/en
Priority to BG7790487Aprioritypatent/BG49025A1/en
Publication of CS455885A1publicationCriticalpatent/CS455885A1/en
Publication of CS254373B1publicationCriticalpatent/CS254373B1/en