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Priority claimed from JP59011059Aexternal-prioritypatent/JPS60157579A/ja
Priority claimed from JP2602884Aexternal-prioritypatent/JPS60172795A/ja
Application filed by Asahi Glass Co LtdfiledCriticalAsahi Glass Co Ltd
Priority claimed from EP85100581Aexternal-prioritypatent/EP0150791B1/de
Application grantedgrantedCritical
Publication of ATE53254T1publicationCriticalpatent/ATE53254T1/de