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Priority to JP1988139031UpriorityCriticalpatent/JPH089491Y2/ja
Priority to US07/425,900prioritypatent/US4981303A/en
Publication of JPH0259366UpublicationCriticalpatent/JPH0259366U/ja
Priority to US08/263,403prioritypatent/USRE35309E/en
Application grantedgrantedCritical
Publication of JPH089491Y2publicationCriticalpatent/JPH089491Y2/ja