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Priority claimed from GB838313976Aexternal-prioritypatent/GB8313976D0/en
Priority claimed from GB838321731Aexternal-prioritypatent/GB8321731D0/en
Application filed by Allied Colloids LtdfiledCriticalAllied Colloids Ltd
Priority claimed from EP84303333Aexternal-prioritypatent/EP0129329B2/en
Application grantedgrantedCritical
Publication of ATE45174T1publicationCriticalpatent/ATE45174T1/en