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Priority claimed from DE2016989Aexternal-prioritypatent/DE2016989C3/de
Application filed by Hoesch AgfiledCriticalHoesch Ag
Priority to NO482373ApriorityCriticalpatent/NO132839C/no
Publication of NO132839BpublicationCriticalpatent/NO132839B/no
Publication of NO132839CpublicationCriticalpatent/NO132839C/no