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Priority to JP1989025744UpriorityCriticalpatent/JPH0620635Y2/ja
Priority to GB9004648Aprioritypatent/GB2229398B/en
Priority to DE19904007195prioritypatent/DE4007195A1/de
Publication of JPH02117186UpublicationCriticalpatent/JPH02117186U/ja
Application grantedgrantedCritical
Publication of JPH0620635Y2publicationCriticalpatent/JPH0620635Y2/ja