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Priority claimed from US06/300,956external-prioritypatent/US4461536A/en
Priority claimed from US06/300,954external-prioritypatent/US4462699A/en
Application filed by Univ Leland Stanford JuniorfiledCriticalUniv Leland Stanford Junior
Priority claimed from EP82304704Aexternal-prioritypatent/EP0074788B1/en
Application grantedgrantedCritical
Publication of ATE43717T1publicationCriticalpatent/ATE43717T1/en