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Priority to JP13045687UpriorityCriticalpatent/JPH027690Y2/ja
Priority to US07/131,912prioritypatent/US4775102A/en
Priority to DE8787310977Tprioritypatent/DE3768786D1/de
Priority to EP87310977Aprioritypatent/EP0272069B1/en
Publication of JPS6434311UpublicationCriticalpatent/JPS6434311U/ja
Application grantedgrantedCritical
Publication of JPH027690Y2publicationCriticalpatent/JPH027690Y2/ja