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Application filed by Johann Berger, Josef BergerfiledCriticalJohann Berger
Priority to NO841547ApriorityCriticalpatent/NO159297C/no
Publication of NO841547LpublicationCriticalpatent/NO841547L/no
Publication of NO159297BpublicationCriticalpatent/NO159297B/no
Publication of NO159297CpublicationCriticalpatent/NO159297C/no