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Priority to JP9589188UpriorityCriticalpatent/JPH0216646U/ja
Priority to DE1989626699prioritypatent/DE68926699T2/de
Priority to EP19890113172prioritypatent/EP0351791B1/en
Publication of JPH0216646UpublicationCriticalpatent/JPH0216646U/ja
Priority to US07/662,318prioritypatent/US5119417A/en