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Priority claimed from GB858502857Aexternal-prioritypatent/GB8502857D0/en
Application filed by Encrypta Electronics LtdfiledCriticalEncrypta Electronics Ltd
Priority claimed from EP19860300782external-prioritypatent/EP0193297B1/en
Application grantedgrantedCritical
Publication of ATE75802T1publicationCriticalpatent/ATE75802T1/en