Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority claimed from JP915874Aexternal-prioritypatent/JPS50105593A/ja
Priority claimed from JP5193474Aexternal-prioritypatent/JPS50144694A/ja
Priority claimed from JP49138969Aexternal-prioritypatent/JPS5165098A/ja
Priority claimed from NO750154Aexternal-prioritypatent/NO137679C/no
Publication of NO771759LpublicationCriticalpatent/NO771759L/no
Application filed by Kureha Chemical Ind Co LtdfiledCriticalKureha Chemical Ind Co Ltd
Priority to NO771759ApriorityCriticalpatent/NO143561C/no
Publication of NO143561BpublicationCriticalpatent/NO143561B/no
Publication of NO143561CpublicationCriticalpatent/NO143561C/no