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Application filed by Pospisil Jaroslav, Michalek Zdenek, Zajdlik Josef, Krejci Petr, Alois SehnalekfiledCriticalPospisil Jaroslav
Priority to CS85884ApriorityCriticalpatent/CS246379B1/en
Publication of CS88485A1publicationCriticalpatent/CS88485A1/en
Publication of CS246379B1publicationCriticalpatent/CS246379B1/en