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Priority to JP2510871UpriorityCriticalpatent/JPS515202Y2/ja
Priority to US00240210Aprioritypatent/US3805980A/en
Publication of JPS4719202UpublicationCriticalpatent/JPS4719202U/ja
Application grantedgrantedCritical
Publication of JPS515202Y2publicationCriticalpatent/JPS515202Y2/ja