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Application filed by Ludvig BaumannfiledCriticalLudvig Baumann
Priority to NO752068ApriorityCriticalpatent/NO140538C/no
Publication of NO752068LpublicationCriticalpatent/NO752068L/no
Publication of NO140538BpublicationCriticalpatent/NO140538B/no
Publication of NO140538CpublicationCriticalpatent/NO140538C/no