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Priority to JP16987978UpriorityCriticalpatent/JPS5587383U/ja
Priority to US06/100,408prioritypatent/US4295499A/en
Priority to DE2949765Aprioritypatent/DE2949765C2/de
Priority to FR7930474Aprioritypatent/FR2444097A1/fr
Priority to GB7942852Aprioritypatent/GB2037331B/en
Publication of JPS5587383UpublicationCriticalpatent/JPS5587383U/ja