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Priority to JP8378175UpriorityCriticalpatent/JPS5430027Y2/ja
Priority to US05/696,920prioritypatent/US4040653A/en
Priority to BR7603967Aprioritypatent/BR7603967A/pt
Publication of JPS52131UpublicationCriticalpatent/JPS52131U/ja
Application grantedgrantedCritical
Publication of JPS5430027Y2publicationCriticalpatent/JPS5430027Y2/ja