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Priority claimed from DE2050438Aexternal-prioritypatent/DE2050438C2/de
Priority claimed from DE19712102460external-prioritypatent/DE2102460C3/de
Priority claimed from DK495571Aexternal-prioritypatent/DK133077C/da
Application filed by Opti Holding AgfiledCriticalOpti Holding Ag
Priority to DK90175ApriorityCriticalpatent/DK90175A/da
Publication of DK90175ApublicationCriticalpatent/DK90175A/da