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Priority to JP13736686UpriorityCriticalpatent/JPS6342636U/ja
Priority to US07/041,699prioritypatent/US4819931A/en
Priority to DE8787106026Tprioritypatent/DE3769046D1/de
Priority to EP87106026Aprioritypatent/EP0259542B1/en
Publication of JPS6342636UpublicationCriticalpatent/JPS6342636U/ja