Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Asahi Glass Co LtdfiledCriticalAsahi Glass Co Ltd
Priority claimed from EP86101366Aexternal-prioritypatent/EP0190701B1/de
Application grantedgrantedCritical
Publication of ATE59226T1publicationCriticalpatent/ATE59226T1/de