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Priority to JP17860881UpriorityCriticalpatent/JPS5882306U/ja
Priority to US06/420,719prioritypatent/US4551962A/en
Priority to DE19823235268prioritypatent/DE3235268A1/de
Publication of JPS5882306UpublicationCriticalpatent/JPS5882306U/ja
Application grantedgrantedCritical
Publication of JPS6348502Y2publicationCriticalpatent/JPS6348502Y2/ja