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 Standard Telephones Cables Ltd, John Handley, Bertram Barnett Grace, Gilbert GilliverfiledCriticalStandard Telephones Cables Ltd
Priority to IE8143ApriorityCriticalpatent/IE16522L/en
Publication of IE16522LpublicationCriticalpatent/IE16522L/en