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Priority claimed from GB08424072Aexternal-prioritypatent/GB2147708B/en
Priority claimed from EP85300419Aexternal-prioritypatent/EP0188857A1/en
Application filed by David William KnightfiledCriticalDavid William Knight
Publication of DK171185D0publicationCriticalpatent/DK171185D0/da
Publication of DK171185ApublicationCriticalpatent/DK171185A/da