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Priority claimed from CA000422315Aexternal-prioritypatent/CA1200670A/en
Application filed by Rother Carole A, Christopher R ScottfiledCriticalRother Carole A
Priority claimed from EP84901275Aexternal-prioritypatent/EP0138909B1/en
Application grantedgrantedCritical
Publication of ATE51664T1publicationCriticalpatent/ATE51664T1/en