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Priority to JP1989136218UpriorityCriticalpatent/JPH0747978Y2/ja
Priority to US07/480,277prioritypatent/US5045738A/en
Priority to US07/643,557prioritypatent/US5160866A/en
Publication of JPH0377269UpublicationCriticalpatent/JPH0377269U/ja
Priority to US08/328,499prioritypatent/USRE36086E/en
Application grantedgrantedCritical
Publication of JPH0747978Y2publicationCriticalpatent/JPH0747978Y2/ja
