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Priority to JP12269188UpriorityCriticalpatent/JPH0640929Y2/ja
Priority to US07/408,147prioritypatent/US5076241A/en
Priority to GB8921014Aprioritypatent/GB2224786B/en
Publication of JPH0246068UpublicationCriticalpatent/JPH0246068U/ja
Application grantedgrantedCritical
Publication of JPH0640929Y2publicationCriticalpatent/JPH0640929Y2/ja