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Priority claimed from GB848431155Aexternal-prioritypatent/GB8431155D0/en
Priority claimed from GB858515981Aexternal-prioritypatent/GB8515981D0/en
Application filed by Stephen David GartonfiledCriticalStephen David Garton
Priority claimed from EP86900198Aexternal-prioritypatent/EP0204802B1/de
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Publication of ATE61750T1publicationCriticalpatent/ATE61750T1/de