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 N.V. Philips' GloeilampenfabriekenfiledCriticalN.V. Philips' Gloeilampenfabrieken
Priority claimed from EP82200613Aexternal-prioritypatent/EP0066331B1/de
Application grantedgrantedCritical
Publication of ATE11610T1publicationCriticalpatent/ATE11610T1/de