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Priority claimed from US07/403,588external-prioritypatent/US4973358A/en
Priority claimed from US07/573,716external-prioritypatent/US5112697A/en
Application filed by Alcan Int LtdfiledCriticalAlcan Int Ltd
Publication of NO920869D0publicationCriticalpatent/NO920869D0/en
Publication of NO920869LpublicationCriticalpatent/NO920869L/en