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Priority to JP4061970ApriorityCriticalpatent/JPS502556B1/ja
Priority to DE19712122287prioritypatent/DE2122287C/de
Priority to GB1339671Aprioritypatent/GB1346493A/en
Priority to FR7117209Aprioritypatent/FR2091519A5/fr
Publication of JPS502556B1publicationCriticalpatent/JPS502556B1/ja