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Priority claimed from GB858502361Aexternal-prioritypatent/GB8502361D0/en
Application filed by Clive David George Richards, Robert Basil ZanonifiledCriticalClive David George Richards
Priority claimed from EP86900222Aexternal-prioritypatent/EP0209537B1/de
Application grantedgrantedCritical
Publication of ATE37844T1publicationCriticalpatent/ATE37844T1/de