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Priority to JP1990026616UpriorityCriticalpatent/JPH0735567Y2/ja
Priority to US07/664,841prioritypatent/US5160754A/en
Priority to GB9105479Aprioritypatent/GB2241863B/en
Publication of JPH03117472UpublicationCriticalpatent/JPH03117472U/ja
Priority to SG162694Aprioritypatent/SG162694G/en
Application grantedgrantedCritical
Publication of JPH0735567Y2publicationCriticalpatent/JPH0735567Y2/ja