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Priority claimed from GB8818720Aexternal-prioritypatent/GB2221456A/en
Priority claimed from GB898911927Aexternal-prioritypatent/GB8911927D0/en
Application filed by 3I Group PlcfiledCritical3I Group Plc
Priority claimed from EP89307945Aexternal-prioritypatent/EP0356049B1/de
Application grantedgrantedCritical
Publication of ATE95331T1publicationCriticalpatent/ATE95331T1/de