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Priority claimed from GB888820296Aexternal-prioritypatent/GB8820296D0/en
Priority claimed from GB898908448Aexternal-prioritypatent/GB8908448D0/en
Application filed by Davy Mckee LtdfiledCriticalDavy Mckee Ltd
Priority claimed from EP89909818Aexternal-prioritypatent/EP0431036B1/de
Application grantedgrantedCritical
Publication of ATE88116T1publicationCriticalpatent/ATE88116T1/de