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Priority to JP5229975UpriorityCriticalpatent/JPS5533378Y2/ja
Priority to CH485076Aprioritypatent/CH590522A5/xx
Priority to US05/677,441prioritypatent/US4055755A/en
Publication of JPS51131128UpublicationCriticalpatent/JPS51131128U/ja
Application grantedgrantedCritical
Publication of JPS5533378Y2publicationCriticalpatent/JPS5533378Y2/ja