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Application filed by Vladimir Ing Mavr, Jaroslav BabickyfiledCriticalVladimir Ing Mavr
Priority to CS886339ApriorityCriticalpatent/CS268615B1/en
Publication of CS633988A1publicationCriticalpatent/CS633988A1/en
Publication of CS268615B1publicationCriticalpatent/CS268615B1/en