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Priority claimed from GB8602293Aexternal-prioritypatent/GB2174236B/en
Application filed by Eev LtdfiledCriticalEev Ltd
Priority claimed from EP86302740Aexternal-prioritypatent/EP0199515B1/de
Application grantedgrantedCritical
Publication of ATE59115T1publicationCriticalpatent/ATE59115T1/de