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Priority to JP4108090UpriorityCriticalpatent/JPH041198U/ja
Priority to DE91106129Tprioritypatent/DE69100519T2/de
Priority to EP91106129Aprioritypatent/EP0452899B1/en
Priority to US07/687,407prioritypatent/US5161585A/en
Publication of JPH041198UpublicationCriticalpatent/JPH041198U/ja