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Priority claimed from DE2061027Aexternal-prioritypatent/DE2061027C3/en
Application filed by Hegler WilhelmfiledCriticalHegler Wilhelm
Publication of DK130282BpublicationCriticalpatent/DK130282B/en
Application grantedgrantedCritical
Publication of DK130282CpublicationCriticalpatent/DK130282C/da