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Priority claimed from US07/102,975external-prioritypatent/US4778878A/en
Priority claimed from US07/103,078external-prioritypatent/US4778877A/en
Application filed by Univ WashingtonfiledCriticalUniv Washington
Priority claimed from EP19880870126external-prioritypatent/EP0310585B1/de
Application grantedgrantedCritical
Publication of ATE89828T1publicationCriticalpatent/ATE89828T1/de