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Priority claimed from DE19511629460external-prioritypatent/DE1629460A1/de
Priority claimed from NO169377Aexternal-prioritypatent/NO135087C/no
Application filed by Prignitz Hapri LeichtbaufiledCriticalPrignitz Hapri Leichtbau
Priority to NO75273ApriorityCriticalpatent/NO133535C/no
Publication of NO133535BpublicationCriticalpatent/NO133535B/no
Publication of NO133535CpublicationCriticalpatent/NO133535C/no