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Application filed by Adolf Cavier, Rudolf MaassfiledCriticalAdolf Cavier
Priority to NO781321ApriorityCriticalpatent/NO146048C/no
Publication of NO781321LpublicationCriticalpatent/NO781321L/no
Publication of NO146048BpublicationCriticalpatent/NO146048B/no
Publication of NO146048CpublicationCriticalpatent/NO146048C/no