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Priority claimed from GB848431289Aexternal-prioritypatent/GB8431289D0/en
Priority claimed from GB848431290Aexternal-prioritypatent/GB8431290D0/en
Application filed by Whitbread & Co PlcfiledCriticalWhitbread & Co Plc
Priority claimed from EP19850309004external-prioritypatent/EP0189657B1/en
Application grantedgrantedCritical
Publication of ATE41032T1publicationCriticalpatent/ATE41032T1/en