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Priority to JP1975024817UpriorityCriticalpatent/JPS5527115Y2/ja
Priority to US05/624,128prioritypatent/US4020505A/en
Priority to CA238,529Aprioritypatent/CA1065480A/en
Publication of JPS51106113UpublicationCriticalpatent/JPS51106113U/ja
Application grantedgrantedCritical
Publication of JPS5527115Y2publicationCriticalpatent/JPS5527115Y2/ja