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Priority to JP12757188UpriorityCriticalpatent/JPH0247669U/ja
Priority to US07/263,609prioritypatent/US5099280A/en
Priority to DE88118029Tprioritypatent/DE3883914T2/de
Priority to EP88118029Aprioritypatent/EP0314175B1/en
Publication of JPH0247669UpublicationCriticalpatent/JPH0247669U/ja