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Priority claimed from DK568582Aexternal-prioritypatent/DK157908C/da
Application filed by John SchmidtfiledCriticalJohn Schmidt
Publication of NO843341LpublicationCriticalpatent/NO843341L/no
Publication of NO166069BpublicationCriticalpatent/NO166069B/no
Publication of NO166069CpublicationCriticalpatent/NO166069C/no