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Priority claimed from DE19863619423external-prioritypatent/DE3619423A1/en
Application filed by Landis & Gyr AgfiledCriticalLandis & Gyr Ag
Priority claimed from EP86905284Aexternal-prioritypatent/EP0238524B2/en
Application grantedgrantedCritical
Publication of ATE45226T1publicationCriticalpatent/ATE45226T1/en