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Priority to JP12175690UpriorityCriticalpatent/JPH0478183U/ja
Priority to GB9124658Aprioritypatent/GB2250505B/en
Priority to US07/796,379prioritypatent/US5168998A/en
Priority to DE4138452Aprioritypatent/DE4138452C2/de
Publication of JPH0478183UpublicationCriticalpatent/JPH0478183U/ja