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Priority claimed from US06/163,045external-prioritypatent/US4374413A/en
Priority claimed from US06/163,046external-prioritypatent/US4374414A/en
Application filed by Gte Automatic Electric Lab IncfiledCriticalGte Automatic Electric Lab Inc
Publication of IT8122560A0publicationCriticalpatent/IT8122560A0/en
Application grantedgrantedCritical
Publication of IT1137932BpublicationCriticalpatent/IT1137932B/en