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Priority claimed from US06/684,424external-prioritypatent/US4591334A/en
Priority claimed from US06/696,670external-prioritypatent/US4583299A/en
Application filed by Trw IncfiledCriticalTrw Inc
Application grantedgrantedCritical
Publication of ATE51539T1publicationCriticalpatent/ATE51539T1/en