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
Priority to US05/877,514priorityCriticalpatent/US4125388A/en
Priority to DE2806931Aprioritypatent/DE2806931C2/de
Application filed by Corning Glass WorksfiledCriticalCorning Glass Works
Priority to AT125578Aprioritypatent/AT377964B/de
Priority to GB6802/78Aprioritypatent/GB1597041A/en
Priority to NLAANVRAGE7802167,Aprioritypatent/NL188844C/xx
Priority to FR7806116Aprioritypatent/FR2418775A1/fr
Publication of ATA125578ApublicationCriticalpatent/ATA125578A/de
Application grantedgrantedCritical
Publication of AT377964BpublicationCriticalpatent/AT377964B/de