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Priority to JP1975051077UpriorityCriticalpatent/JPS5610010Y2/ja
Priority to US05/676,661prioritypatent/US4054844A/en
Publication of JPS51131162UpublicationCriticalpatent/JPS51131162U/ja
Application grantedgrantedCritical
Publication of JPS5610010Y2publicationCriticalpatent/JPS5610010Y2/ja