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Priority claimed from GB858520218Aexternal-prioritypatent/GB8520218D0/en
Priority claimed from GB868603651Aexternal-prioritypatent/GB8603651D0/en
Priority claimed from GB868603653Aexternal-prioritypatent/GB8603653D0/en
Priority claimed from GB868603652Aexternal-prioritypatent/GB8603652D0/en
Application filed by Allied Colloids LtdfiledCriticalAllied Colloids Ltd
Priority claimed from EP86306081Aexternal-prioritypatent/EP0216479B2/de
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Publication of ATE60871T1publicationCriticalpatent/ATE60871T1/de