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Priority claimed from GB878727819Aexternal-prioritypatent/GB8727819D0/en
Application filed by Ecc Int LtdfiledCriticalEcc Int Ltd
Priority claimed from EP88311023Aexternal-prioritypatent/EP0318236B1/de
Application grantedgrantedCritical
Publication of ATE88170T1publicationCriticalpatent/ATE88170T1/de