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Priority to JP1975142565UpriorityCriticalpatent/JPS5528799Y2/ja
Priority to US05/663,819prioritypatent/US4061811A/en
Priority to IT4840876Aprioritypatent/IT1057306B/it
Publication of JPS5258183UpublicationCriticalpatent/JPS5258183U/ja
Application grantedgrantedCritical
Publication of JPS5528799Y2publicationCriticalpatent/JPS5528799Y2/ja