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Application filed by Sigurd HeienfiledCriticalSigurd Heien
Priority to NO415971ApriorityCriticalpatent/NO132106C/no
Priority to JP8753572Aprioritypatent/JPS4855501A/ja
Priority to DK561172Aprioritypatent/DK140701B/da
Publication of NO132106BpublicationCriticalpatent/NO132106B/no
Publication of NO132106CpublicationCriticalpatent/NO132106C/no