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Priority claimed from US06/657,624external-prioritypatent/US4574975A/en
Application filed by Reynolds Metals CofiledCriticalReynolds Metals Co
Priority claimed from EP19840307395external-prioritypatent/EP0140686B1/de
Application grantedgrantedCritical
Publication of ATE46123T1publicationCriticalpatent/ATE46123T1/de