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Priority claimed from US06/402,056external-prioritypatent/US4453961A/en
Priority claimed from US06/427,525external-prioritypatent/US4486212A/en
Application filed by Corning Glass WorksfiledCriticalCorning Glass Works
Priority claimed from EP83304017Aexternal-prioritypatent/EP0100174B1/en
Application grantedgrantedCritical
Publication of ATE28177T1publicationCriticalpatent/ATE28177T1/en