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Priority to JP8457372UpriorityCriticalpatent/JPS5210901Y2/ja
Priority to US00379317Aprioritypatent/US3842205A/en
Publication of JPS4942922UpublicationCriticalpatent/JPS4942922U/ja
Application grantedgrantedCritical
Publication of JPS5210901Y2publicationCriticalpatent/JPS5210901Y2/ja