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Priority to JP1975027377UpriorityCriticalpatent/JPS542855Y2/ja
Priority to US05/654,347prioritypatent/US4066415A/en
Priority to GB764198Aprioritypatent/GB1542285A/en
Publication of JPS51108864UpublicationCriticalpatent/JPS51108864U/ja
Application grantedgrantedCritical
Publication of JPS542855Y2publicationCriticalpatent/JPS542855Y2/ja