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 Elektroingenioererne FerrantifiledCriticalElektroingenioererne Ferranti
Application grantedgrantedCritical
Publication of DK37747CpublicationCriticalpatent/DK37747C/da