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Priority to JP7959472ApriorityCriticalpatent/JPS5635824B2/ja
Priority to IT6925873Aprioritypatent/IT991883B/it
Priority to FR7327480Aprioritypatent/FR2194967A1/fr
Publication of JPS4937681ApublicationCriticalpatent/JPS4937681A/ja
Publication of JPS5635824B2publicationCriticalpatent/JPS5635824B2/ja