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Application filed by Frank Wessel JohansenfiledCriticalFrank Wessel Johansen
Priority to NO752878ApriorityCriticalpatent/NO138391C/no
Publication of NO752878LpublicationCriticalpatent/NO752878L/no
Publication of NO138391BpublicationCriticalpatent/NO138391B/no
Publication of NO138391CpublicationCriticalpatent/NO138391C/no