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Priority claimed from DE19873724346external-prioritypatent/DE3724346A1/en
Priority claimed from DE19883805357external-prioritypatent/DE3805357A1/en
Application filed by Alcatel NvfiledCriticalAlcatel Nv
Priority claimed from EP19880107205external-prioritypatent/EP0290952B1/en
Application grantedgrantedCritical
Publication of ATE82101T1publicationCriticalpatent/ATE82101T1/en