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Priority to JP4811281UpriorityCriticalpatent/JPS6242168Y2/ja
Priority to DE19813128435prioritypatent/DE3128435A1/de
Publication of JPS57160422UpublicationCriticalpatent/JPS57160422U/ja
Application grantedgrantedCritical
Publication of JPS6242168Y2publicationCriticalpatent/JPS6242168Y2/ja