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Priority to JP1974150873UpriorityCriticalpatent/JPS5176312U/ja
Priority to DE19752535508prioritypatent/DE2535508A1/de
Priority to US05/604,446prioritypatent/US4047751A/en
Priority to GB33859/75Aprioritypatent/GB1484962A/en
Publication of JPS5176312UpublicationCriticalpatent/JPS5176312U/ja