Legal status (The legal status 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 status listed.)
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Priority to JP5503473ApriorityCriticalpatent/JPS5230326B2/ja
Priority to GB2001474Aprioritypatent/GB1435634A/en
Priority to DE2423521Aprioritypatent/DE2423521A1/de
Priority to NO741797Aprioritypatent/NO144331C/no
Publication of JPS506220ApublicationCriticalpatent/JPS506220A/ja
Publication of JPS5230326B2publicationCriticalpatent/JPS5230326B2/ja