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Priority claimed from GB898926161Aexternal-prioritypatent/GB8926161D0/en
Priority claimed from GB898927995Aexternal-prioritypatent/GB8927995D0/en
Priority claimed from PCT/GB1990/001778external-prioritypatent/WO1991007541A1/en
Application filed by Albany Int CorpfiledCriticalAlbany Int Corp
Publication of NO912867D0publicationCriticalpatent/NO912867D0/no