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Priority to JP4741290UpriorityCriticalpatent/JPH047555U/ja
Priority to EP91303658Aprioritypatent/EP0458465B1/en
Priority to DE69115122Tprioritypatent/DE69115122T2/de
Priority to US07/691,150prioritypatent/US5234177A/en
Publication of JPH047555UpublicationCriticalpatent/JPH047555U/ja