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Priority claimed from GB838318238Aexternal-prioritypatent/GB8318238D0/en
Priority claimed from GB848405625Aexternal-prioritypatent/GB8405625D0/en
Application filed by Barry GarringtonfiledCriticalBarry Garrington
Priority claimed from EP84304635Aexternal-prioritypatent/EP0134089B1/de
Application grantedgrantedCritical
Publication of ATE42519T1publicationCriticalpatent/ATE42519T1/de