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Priority to JP8036372UpriorityCriticalpatent/JPS5148345Y2/ja
Priority to US00339285Aprioritypatent/US3854517A/en
Publication of JPS4938530UpublicationCriticalpatent/JPS4938530U/ja
Application grantedgrantedCritical
Publication of JPS5148345Y2publicationCriticalpatent/JPS5148345Y2/ja