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Publication date
Application filed by Safar Jiri, Zajdlik Josef, Pospisil Jaroslav, Michalek ZdenekfiledCriticalSafar Jiri
Priority to CS803185ApriorityCriticalpatent/CS233397B1/en
Publication of CS318580A1publicationCriticalpatent/CS318580A1/en
Publication of CS233397B1publicationCriticalpatent/CS233397B1/en