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Priority claimed from JP58078223Aexternal-prioritypatent/JPS59206028A/en
Priority claimed from JP10028083Aexternal-prioritypatent/JPS59225721A/en
Priority claimed from JP58172152Aexternal-prioritypatent/JPS60118212A/en
Application filed by Asahi Glass Co LtdfiledCriticalAsahi Glass Co Ltd
Priority claimed from EP84104905Aexternal-prioritypatent/EP0124863B1/en
Application grantedgrantedCritical
Publication of ATE62144T1publicationCriticalpatent/ATE62144T1/en