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Application filed by Knut KnutzenfiledCriticalKnut Knutzen
Priority to NO912840ApriorityCriticalpatent/NO172769C/no
Publication of NO912840D0publicationCriticalpatent/NO912840D0/no
Publication of NO912840LpublicationCriticalpatent/NO912840L/no
Publication of NO172769BpublicationCriticalpatent/NO172769B/no
Publication of NO172769CpublicationCriticalpatent/NO172769C/no