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Priority claimed from FR778000Aexternal-prioritypatent/FR1224062A/fr
Application filed by Gen Telephone LabfiledCriticalGen Telephone Lab
Publication of BE583541ApublicationCriticalpatent/BE583541A/fr
BE583541A1958-10-311959-10-13Perfectionnements aux dispositifs de test d'itinéraires pour réseau de connexion électronique à marquage terminal.
BE583541A
(fr)