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Priority to JP1988112146UpriorityCriticalpatent/JPH0615144Y2/ja
Priority to US07/387,616prioritypatent/US4958101A/en
Priority to GB8917523Aprioritypatent/GB2224317B/en
Publication of JPH0233940UpublicationCriticalpatent/JPH0233940U/ja
Application grantedgrantedCritical
Publication of JPH0615144Y2publicationCriticalpatent/JPH0615144Y2/ja
