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Priority claimed from GB868609323Aexternal-prioritypatent/GB8609323D0/en
Priority claimed from GB868613684Aexternal-prioritypatent/GB8613684D0/en
Application filed by Micropore International LtdfiledCriticalMicropore International Ltd
Priority claimed from EP87303185Aexternal-prioritypatent/EP0242149B1/en
Application grantedgrantedCritical
Publication of ATE72542T1publicationCriticalpatent/ATE72542T1/en