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Priority claimed from GB888815726Aexternal-prioritypatent/GB8815726D0/en
Priority claimed from GB898911971Aexternal-prioritypatent/GB8911971D0/en
Application filed by Wiggins Teape Group LtdfiledCriticalWiggins Teape Group Ltd
Priority claimed from EP89306541Aexternal-prioritypatent/EP0357187B1/de
Application grantedgrantedCritical
Publication of ATE100763T1publicationCriticalpatent/ATE100763T1/de