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Priority to JP11559086UpriorityCriticalpatent/JPS6323569U/ja
Priority to DE8787105335Tprioritypatent/DE3760977D1/de
Priority to EP87105335Aprioritypatent/EP0242738B2/en
Priority to US07/039,856prioritypatent/US4782890A/en
Priority to CN87103423Aprioritypatent/CN1011538B/zh
Priority to CA000535243Aprioritypatent/CA1289129C/en
Publication of JPS6323569UpublicationCriticalpatent/JPS6323569U/ja