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Priority claimed from US05/918,139external-prioritypatent/US4172626A/en
Priority claimed from US05/953,677external-prioritypatent/US4181386A/en
Priority claimed from US06/024,356external-prioritypatent/US4252389A/en
Application filed by Amp IncorporatedfiledCriticalAmp Incorporated
Priority claimed from EP79301163Aexternal-prioritypatent/EP0006725B1/en
Application grantedgrantedCritical
Publication of ATE2035T1publicationCriticalpatent/ATE2035T1/en