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Priority claimed from GB848407301Aexternal-prioritypatent/GB8407301D0/en
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Priority claimed from GB848426995Aexternal-prioritypatent/GB8426995D0/en
Priority claimed from GB848431459Aexternal-prioritypatent/GB8431459D0/en
Application filed by Ici PlcfiledCriticalIci Plc
Priority claimed from EP85301205Aexternal-prioritypatent/EP0164817B1/de
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Publication of ATE60250T1publicationCriticalpatent/ATE60250T1/de