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Application filedfiledCritical
Priority to JP1988166542UpriorityCriticalpatent/JPH073089Y2/ja
Priority to US07/425,900prioritypatent/US4981303A/en
Publication of JPH0287175UpublicationCriticalpatent/JPH0287175U/ja
Priority to US08/263,403prioritypatent/USRE35309E/en
Application grantedgrantedCritical
Publication of JPH073089Y2publicationCriticalpatent/JPH073089Y2/ja