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Priority claimed from US06/781,242external-prioritypatent/US4777136A/en
Priority claimed from US06/855,878external-prioritypatent/US4918163A/en
Application filed by Univ CaliforniafiledCriticalUniv California
Application grantedgrantedCritical
Publication of ATE81358T1publicationCriticalpatent/ATE81358T1/de