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Priority to JP1977010326UpriorityCriticalpatent/JPS5940575Y2/ja
Priority to IT2062478Uprioritypatent/IT7820624V0/it
Priority to IT7819768Aprioritypatent/IT1092033B/it
Publication of JPS53106564UpublicationCriticalpatent/JPS53106564U/ja
Application grantedgrantedCritical
Publication of JPS5940575Y2publicationCriticalpatent/JPS5940575Y2/ja