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Priority to JP1990056483UpriorityCriticalpatent/JP2519560Y2/ja
Priority to GB9108994Aprioritypatent/GB2243507B/en
Publication of JPH0419842UpublicationCriticalpatent/JPH0419842U/ja
Priority to US08/142,106prioritypatent/US5434563A/en
Application grantedgrantedCritical
Publication of JP2519560Y2publicationCriticalpatent/JP2519560Y2/ja
