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Application filed by Ladislav Ing Liptak, Ladislav Ing HribikfiledCriticalLadislav Ing Liptak
Priority to CS869457ApriorityCriticalpatent/CS260320B1/en
Publication of CS945786A1publicationCriticalpatent/CS945786A1/en
Publication of CS260320B1publicationCriticalpatent/CS260320B1/en