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Priority claimed from DE2061027Aexternal-prioritypatent/DE2061027C3/de
Publication of NO761825LpublicationCriticalpatent/NO761825L/no
Application filed by Wilhelm HeglerfiledCriticalWilhelm Hegler
Priority to NO761825ApriorityCriticalpatent/NO143453C/no
Publication of NO143453BpublicationCriticalpatent/NO143453B/no
Publication of NO143453CpublicationCriticalpatent/NO143453C/no