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Priority claimed from NZ20654483Aexternal-prioritypatent/NZ206544A/en
Application filed by Leslie KayfiledCriticalLeslie Kay
Priority claimed from EP84308526Aexternal-prioritypatent/EP0147962B1/en
Application grantedgrantedCritical
Publication of ATE41232T1publicationCriticalpatent/ATE41232T1/en