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Application filed by Harald WermelinfiledCriticalHarald Wermelin
Priority to NO781552ApriorityCriticalpatent/NO144521C/no
Publication of NO781552LpublicationCriticalpatent/NO781552L/no
Publication of NO144521BpublicationCriticalpatent/NO144521B/no
Publication of NO144521CpublicationCriticalpatent/NO144521C/no