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Priority claimed from US08/132,117external-prioritypatent/US5456580A/en
Priority claimed from US08/284,140external-prioritypatent/US5460482A/en
Application filed by Vaughan CofiledCriticalVaughan Co
Application grantedgrantedCritical
Publication of TW267211BpublicationCriticalpatent/TW267211B/zh