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Priority to JP1987170723UpriorityCriticalpatent/JPH0176240U/ja
Priority to DE8888118646Tprioritypatent/DE3878164T2/de
Priority to EP88118646Aprioritypatent/EP0315966B1/en
Priority to US07/269,713prioritypatent/US4950092A/en
Publication of JPH0176240UpublicationCriticalpatent/JPH0176240U/ja
